Anatomy and Physiology Requirements for Dental Hygiene Programs
Anatomy and Physiology Requirements for Dental Hygiene Programs- everything you need to know about A&P I and II for dental hygiene school admissions — credit hours, lab requirements, time limits, grade thresholds, and where to take them online.
| The Short Answer Virtually every CODA-accredited dental hygiene program requires Human Anatomy and Physiology I and II with lab — typically 8 credit hours total (4 credits each), with a minimum grade of C or C+, completed within the last 5 to 7 years. A&P is the largest single prerequisite credit block and the most heavily weighted course in dental hygiene admissions scoring. Online accredited A&P courses with lab are accepted by most CODA programs when taken from a regionally accredited institution. Failing to complete A&P with a strong grade is the single most common reason competitive applicants are rejected from dental hygiene school. |
Of all the prerequisite courses dental hygiene programs require, none matters more than Anatomy and Physiology. It’s the longest course block in the prerequisite stack — eight credit hours across two semesters, more than any other single subject. It’s the most heavily weighted in admissions scoring at most CODA programs. It’s the course that most often disqualifies applicants who took it more than five years ago. And it’s the foundation on which the entire clinical hygiene curriculum is built — without solid A&P, students struggle in the program’s first semester and may not pass.
This article gives you everything you need to know to get A&P right: what programs actually require, why the lab requirement is non-negotiable, how time limits work, what grades you actually need, the differences between in-person and online options, and how to choose a course provider that will transfer cleanly to your target dental hygiene program. The information matters because A&P is where most prospective hygiene students lose admission points, get put on waitlists, or get rejected outright. Done well, it’s the course that gets you accepted.
This article is part of our broader dental hygiene prerequisites cluster. For the full picture of every prerequisite a CODA program requires — not just A&P — see our Dental Hygiene Prerequisites: The Complete Guide. For information on which online prerequisite providers transfer cleanly to CODA programs, see Online Dental Hygiene Prerequisites Accepted by CODA Programs. You can verify your target program’s accreditation status using the CODA Find a Program directory, and the American Dental Education Association maintains comprehensive information on the three CODA program types (associate, bachelor’s, post-baccalaureate).
The specific A&P requirement varies slightly across the roughly 350 CODA-accredited dental hygiene programs in the United States, but the patterns are consistent enough to summarize cleanly. Here’s what virtually every program requires:
Almost every CODA program requires the full two-semester sequence — one course covering structures and systems of the upper body (typically integumentary, skeletal, muscular, nervous, and special senses), and a second course covering systems of the lower body and integration (cardiovascular, respiratory, digestive, urinary, endocrine, lymphatic, and reproductive). The two courses are sequential — A&P II requires A&P I as a prerequisite at almost every institution.
A small number of programs accept a single “Essentials of Anatomy and Physiology” course as an alternative to the two-semester sequence. Des Moines Area Community College, for example, accepts either BIO 164 (Essentials A&P, single course) OR both BIO 168 and BIO 173 (the full A&P I + II sequence). However, this single-course option is the exception, not the rule. Most programs require the full two-semester sequence and will not accept a condensed version. If you’re uncertain, take the full sequence — it’s the universally accepted path, and the additional time investment is small.
The standard credit allocation is 4 credit hours per semester, totaling 8 credit hours across A&P I and II. Some programs require 6 credit hours total (3 + 3), particularly older curricula or programs that pair a lecture-only A&P sequence with separate lab courses. A few programs require up to 10 credit hours total. Check your specific target program’s requirements, but assume 8 credit hours is the working baseline.
This deserves emphasis because it’s where many applicants get tripped up. CODA programs require A&P with lab, not lecture-only A&P. The lab requirement is structural — dental hygiene practice requires hands-on familiarity with anatomical structures (especially in the head and neck), and admissions committees treat lecture-only A&P as inadequate preparation. Take A&P with lab from the start; do not assume you can substitute a lecture-only version and add a separate lab later (you usually cannot).
Online A&P courses can satisfy the lab requirement when the course includes a virtual lab component, simulation-based dissection, or a kit-based at-home lab. The key question for any online provider is whether their A&P I and II courses include lab credit on the official transcript — not just lab content embedded in the lecture portion. Reputable online providers will confirm this in writing before you enroll. (PrereqCourses.com’s BIO 270 and BIO 275 both include lab and appear on official Upper Iowa University transcripts as 4-credit courses with lab — exactly matching the format CODA programs expect.)
Most programs require a minimum grade of C in each A&P course; some require C+ or B-. A grade of C-minus is generally not sufficient. The grade requirement is not just an admissions filter — it’s an academic-honesty floor. Programs have learned that students who barely pass A&P struggle in the first semester of the dental hygiene curriculum, where head and neck anatomy is taught at advanced clinical depth. A C-minus in A&P is a strong signal of likely struggle in dental hygiene’s clinical curriculum.
In practice, competitive applicants need much higher than a C. At programs with ranking-based admissions (the majority), every grade point in A&P translates to admission points. A B in A&P puts you on the bubble; an A puts you at the top of the candidate stack. The math is harsh: at programs admitting 20–30 students per cycle from 100–300 applicants, even strong candidates with B grades in A&P often end up on waitlists. Aim for an A. We’ll cover study strategies later in this article.
This is the requirement that catches the most career-changers off guard. Most CODA programs require A&P (and other science prerequisites) to have been completed within the last 5 to 7 years prior to application. Goodwin University, for example, requires A&P within the last 5 years with a C+ or better. College of DuPage requires prerequisite science courses within 5 years of application. Pikes Peak State College requires science courses within 7 years of application. Indiana University’s BSDH program requires all science courses within the past 5 years, and the University of Maryland’s program requires science courses within 7 years of application. The exact recency varies by program — verify yours specifically.
If your A&P credits are older than the time limit, you’ll need to retake them. There are no shortcuts — programs do not generally accept “refresher” courses or CLEP exams in lieu of fresh A&P credit. For applicants in this situation, see our How to Refresh Expired Prerequisites for Dental Hygiene School for the specific refresh strategy.
CODA programs accept transfer credit only from regionally accredited institutions — accreditation by one of the seven regional accreditors recognized by the U.S. Department of Education. Nationally accredited or unaccredited courses are not accepted. This rule eliminates many cheap online “prerequisite” providers immediately. PrereqCourses.com’s A&P courses are delivered through Upper Iowa University, which holds Higher Learning Commission regional accreditation — the courses transfer to CODA programs nationwide for this reason.
Most applicants understand that A&P is required. Fewer understand how much it actually drives admissions decisions. The disproportionate weight A&P carries is worth explaining, because once you understand it, your study strategy and provider choice become much clearer:
In the typical CODA prerequisite stack of 18–25 credits, A&P represents 8 of those credits — roughly one-third of the entire science prerequisite assessment, and the largest single subject. When admissions committees calculate a prerequisite GPA, A&P is automatically the most influential single component. A high grade in A&P pulls your prerequisite GPA up substantially; a low grade pulls it down disproportionately.
Multiple studies in dental hygiene education research have shown that A&P performance is the strongest single predictor of first-semester clinical performance in dental hygiene programs. Students who earned an A in A&P consistently outperform students who earned a B in the head and neck anatomy and oral histology coursework that dominates the first dental hygiene semester. Admissions committees know this — they’re not just checking a box, they’re trying to predict who will succeed in their program. Programs report attrition rates between 5–15%, and the most common cause is academic struggle in the first semester. A&P grades are the best available signal of who’s likely to make it.
Some programs make this explicit. Minnesota State Community and Technical College’s published admissions process states that the grade in BIOL 2260 Human Anatomy & Physiology I is used as a tiebreaker when applicants are tied on total points. At programs with point-based admission scoring, A&P grades aren’t just averaged in — they’re the deciding factor when the math gets close. An applicant with a B in A&P I will lose to an applicant with an A in A&P I if every other factor is equal.
A&P is structurally similar to the dental hygiene curriculum’s first year — a high volume of detailed anatomical and physiological content, learned at a fast pace, requiring memorization of hundreds of terms while also understanding underlying systems. Programs treat A&P as a real-world preview of their own curriculum’s intensity. An applicant who struggled through A&P signals (correctly) that they may struggle through dental hygiene’s first semester, where the volume and pace are similar.
Knowing the content in advance makes the course faster to complete and easier to study for. Here’s the standard scope of what A&P I and II cover at most regionally accredited institutions:
The biggest decision most prospective dental hygiene students face for A&P is where to take it. The answer is more nuanced than “online” versus “in person.” Here’s how to think about the trade-offs:
The traditional path. Tuition typically runs $200–$400 per credit ($1,600–$3,200 for the full 8-credit sequence). The advantages are predictable: in-person lab access with cadaveric models or wet specimens, structured semester pacing, direct instructor access during office hours, and face-to-face study group formation.
The disadvantages are practical. Most community college A&P courses run 16-week semesters, with limited summer offerings. Working students often can’t attend daytime sections, and evening sections fill quickly. If you live in an area without convenient community college access — rural areas, certain urban housing situations, or anywhere with significant commute friction — the practical cost (in time and gas) often exceeds the listed tuition. And the timeline is the killer: completing A&P I in fall and A&P II in spring takes a full academic year. For working DAs and career-changers on a hurry, that’s often unacceptable.
Online A&P from a regionally accredited institution has become the dominant path for working pre-hygiene students. Total tuition typically runs $1,000–$1,500 per course ($2,000–$3,000 for the full 8-credit sequence) — comparable to community college on price. The advantages are timing-driven: many online providers offer self-paced or 8–12 week course structures, with rolling start dates rather than fixed semester schedules. Students working full-time can complete A&P I and II in 4–6 months instead of a full academic year, without compromising on accreditation or transferability.
The trade-offs are real but manageable. Lab is delivered through virtual simulation, dissection software, or kit-based at-home labs (which work surprisingly well for the surface anatomy and physiology focus of undergraduate A&P). You won’t dissect a cadaver. But for dental hygiene admissions purposes, the lab credit on your transcript carries the same weight regardless of delivery format — what programs care about is the official transcript line item.
The timing of when you take A&P matters almost as much as where. Here’s how to think about sequencing it within your overall application timeline:
Most CODA programs admit students once per year, typically with applications due in the fall or winter for a fall start the following year. The optimal A&P timing is:
This is a tempting compression strategy that almost always backfires. A&P II builds on A&P I content — particularly cellular biology, tissue types, and basic anatomical orientation. Students who take both simultaneously tend to underperform in both, ending up with B grades where sequential study would have earned A grades. The two-course sequence is sequenced for a reason.
The exception: very experienced students with prior science backgrounds (current DAs with clinical experience, EMTs, paramedics, RNs, or military medical corpsmen) sometimes successfully take A&P I and II in parallel. If you don’t fit one of those profiles, take them sequentially.
If you take A&P now and don’t apply for 4 years, you’ll be near the recency limit at most programs by application time. Plan A&P timing such that your courses will be no more than 3–4 years old at application — leaving headroom for an unexpected delay (illness, financial change, family circumstances) that pushes your application timeline back.
Given how heavily A&P is weighted in admissions, the difference between a B and an A in A&P often determines which CODA program you get into. Here’s how successful pre-hygiene students approach the course:
A&P is unusual because it requires both rote memorization (hundreds of structures, terms, and Latin/Greek roots) and conceptual understanding (how systems integrate). Students who treat it as pure memorization fail the conceptual exam questions; students who treat it as pure conceptual learning fail the identification questions. Plan for both modes.
A&P content volume defeats cramming. Most successful students study A&P 30–60 minutes per day, six days a week, throughout the course — far more effective than 4–6 hour study sessions concentrated before exams. The frequent-exposure pattern matches how anatomical terminology actually consolidates in memory.
Reading the textbook is necessary but insufficient. Top-performing A&P students supplement with:
Pre-hygiene students have a study advantage other A&P students don’t: clinical motivation. When you study the trigeminal nerve, study it as the nerve you’ll be administering local anesthesia to as a hygienist. When you study lymph nodes, study them as the nodes you’ll be palpating during every patient examination. When you study the cardiovascular system, connect it to the antibiotic prophylaxis decisions you’ll make for patients with cardiac conditions. This connection-building is both motivating and effective — clinical context is one of the strongest memory aids known to learning science.
Yes, at the majority of CODA-accredited dental hygiene programs, with three caveats: the course must be from a regionally accredited institution, must include lab on the transcript, and must match the credit hour structure your target program expects (typically 4 credits each for A&P I and II). Verify with your specific program’s admissions office before enrolling, but the answer is yes for most programs at this point — online accredited A&P has become widely accepted as on-campus capacity has tightened and prerequisite delivery has shifted.
Most CODA programs require 8 credit hours total (4 credits each for A&P I and A&P II), both with lab. Some programs require 6 credit hours (3 + 3). A small number require up to 10. Confirm your specific program’s requirements; assume 8 credits as the working baseline.
You need A&P with lab. Lecture-only A&P is generally not accepted by CODA programs. The lab requirement is structural — dental hygiene is a clinical profession, and admissions committees treat hands-on lab experience as foundational. Take A&P with lab from the start; do not assume you can substitute lecture-only and add a separate lab later.
Most programs require A&P (and other science prerequisites) to have been completed within the last 5 to 7 years. The exact recency varies by program — Goodwin University requires 5 years, Pikes Peak State College requires 7 years, College of DuPage requires 5 years. If your A&P credit is older than the recency limit at your target program, you’ll need to retake it.
Programs generally require a minimum grade of C, sometimes C+. But the minimum grade is rarely competitive — at programs admitting 20–30 students from 100–300 applicants, candidates with C or B grades in A&P routinely lose seats to candidates with A grades. Plan to earn an A. The course is challenging but learnable with deliberate study, and the admissions impact of an A versus a B is often the difference between acceptance and waitlist.
Possible at some institutions, but not recommended for most students. A&P II builds directly on A&P I content (cellular biology, tissue types, anatomical orientation), and students taking both simultaneously typically underperform in both compared to sequential study. The exception is students with prior strong science backgrounds — current DAs, EMTs, paramedics, RNs. For most pre-hygiene students, taking the courses sequentially is the better choice.
Probably yes. Most CODA programs enforce a 5–7 year recency rule on science prerequisites. There are limited workarounds — some programs accept a recent grade in a higher-level biology course (microbiology, biochemistry, or pathophysiology) as evidence that you’ve maintained current scientific knowledge, but this is program-specific and shouldn’t be assumed. The cleanest path is to retake A&P I and II from a regionally accredited online provider; the time and cost are smaller than the alternative of being rejected from your target program. See our guide to refreshing expired prerequisites for the full strategy.
Neither, structurally. The content is identical at regionally accredited institutions whether delivered online or in person. The practical difference is self-discipline: online courses require more self-directed time management, while in-person courses provide structural pacing through scheduled class meetings. Students who succeed in online A&P typically succeed because they treat it like a part-time job — scheduled study blocks at fixed times, accountability to a study partner or family member, and immediate engagement with content rather than letting work pile up.
Almost always, yes. Regional accreditation is national in scope — a course from a Higher Learning Commission–accredited Iowa institution transfers to a CODA program in Florida, Texas, California, or New York identically. Geography of the originating institution doesn’t matter; what matters is that the institution is regionally accredited and the credit hours and lab structure match the receiving program’s expectations.
No. AP Biology covers introductory biology content, not anatomy and physiology. A&P I and II are upper-level biology courses with focus on human anatomical structures and physiological systems — content not covered by AP Biology. Most CODA programs explicitly reject AP credit as a substitute for A&P. Take the dedicated A&P I and II sequence.
Anatomy and Physiology is the single most important course in your dental hygiene application. It’s the largest credit block, the most heavily weighted in admissions scoring, the most predictive of clinical success, the most common tiebreaker, and the course where applicants most often lose admission seats. Getting A&P right — in the right format, from the right provider, with the right grade, at the right time — is the single highest-leverage decision in your pre-hygiene preparation.
The path is clear: take A&P I and A&P II with lab, from a regionally accredited institution, totaling 8 credit hours, completed within the last 5 years, with a grade of A in both courses. Take them sequentially, not simultaneously. Time them so they’re complete and on transcript before your application deadline, with at least 12 months of recency headroom. Whether you take them online or in person matters less than whether you complete them with full focus and earn the grade that gets you accepted.
PrereqCourses.com offers online A&P I (BIO 270) and A&P II (BIO 275), each as a 4-credit course with lab, delivered through Upper Iowa University (Higher Learning Commission regional accreditation). Both courses are accepted by CODA-accredited dental hygiene programs nationwide. The full 8-credit sequence is priced at $1,390 — comparable to in-state community college tuition, with self-paced flexibility that lets working dental assistants and career-changers complete both courses in 4–6 months instead of a full academic year. Browse the A&P courses on PrereqCourses.com to verify the course format, credit structure, and accreditation before you enroll, and confirm transferability with your target dental hygiene program’s registrar.
About this article
Information about specific CODA program prerequisite requirements is accurate as of publication based on each program’s published admissions materials. Requirements can change — verify with your specific target program’s admissions office before relying on details. Time limits, credit hour structures, minimum grade requirements, and lab requirements vary by program. PrereqCourses.com cannot guarantee transfer acceptance at any specific CODA program; we strongly recommend confirming transferability with your target program’s registrar before enrolling.
Related articles in our dental hygiene series:
• Dental Hygiene Prerequisites: The Complete Guide — every prerequisite course required by CODA programs, not just A&P.
• Online Dental Hygiene Prerequisites Accepted by CODA Programs — which online prerequisite providers transfer cleanly to CODA programs nationwide.
• How to Refresh Expired Prerequisites for Dental Hygiene School — strategy for career-changers whose A&P credits are past the recency limit.
• Dental Assistant to Dental Hygienist: The Bridge Pathway Explained — for working DAs planning the upgrade to RDH.
• Dental Assistant to Dental Hygienist Salary: Is the Bridge Worth It? — full ROI analysis with current BLS salary data.
• Tuition Reimbursement for Dental Assistants Pursuing Dental Hygiene — how to get your employer to fund part of your A&P and program tuition.Everything you need to know about A&P I and II for dental hygiene school admissions — credit hours, lab requirements, time limits, grade thresholds, and where to take them online.
| The Short Answer Virtually every CODA-accredited dental hygiene program requires Human Anatomy and Physiology I and II with lab — typically 8 credit hours total (4 credits each), with a minimum grade of C or C+, completed within the last 5 to 7 years. A&P is the largest single prerequisite credit block and the most heavily weighted course in dental hygiene admissions scoring. Online accredited A&P courses with lab are accepted by most CODA programs when taken from a regionally accredited institution. Failing to complete A&P with a strong grade is the single most common reason competitive applicants are rejected from dental hygiene school. |
Of all the prerequisite courses dental hygiene programs require, none matters more than Anatomy and Physiology. It’s the longest course block in the prerequisite stack — eight credit hours across two semesters, more than any other single subject. It’s the most heavily weighted in admissions scoring at most CODA programs. It’s the course that most often disqualifies applicants who took it more than five years ago. And it’s the foundation on which the entire clinical hygiene curriculum is built — without solid A&P, students struggle in the program’s first semester and may not pass.
This article gives you everything you need to know to get A&P right: what programs actually require, why the lab requirement is non-negotiable, how time limits work, what grades you actually need, the differences between in-person and online options, and how to choose a course provider that will transfer cleanly to your target dental hygiene program. The information matters because A&P is where most prospective hygiene students lose admission points, get put on waitlists, or get rejected outright. Done well, it’s the course that gets you accepted.
This article is part of our broader dental hygiene prerequisites cluster. For the full picture of every prerequisite a CODA program requires — not just A&P — see our Dental Hygiene Prerequisites: The Complete Guide. For information on which online prerequisite providers transfer cleanly to CODA programs, see Online Dental Hygiene Prerequisites Accepted by CODA Programs. You can verify your target program’s accreditation status using the CODA Find a Program directory, and the American Dental Education Association maintains comprehensive information on the three CODA program types (associate, bachelor’s, post-baccalaureate).
The specific A&P requirement varies slightly across the roughly 350 CODA-accredited dental hygiene programs in the United States, but the patterns are consistent enough to summarize cleanly. Here’s what virtually every program requires:
Almost every CODA program requires the full two-semester sequence — one course covering structures and systems of the upper body (typically integumentary, skeletal, muscular, nervous, and special senses), and a second course covering systems of the lower body and integration (cardiovascular, respiratory, digestive, urinary, endocrine, lymphatic, and reproductive). The two courses are sequential — A&P II requires A&P I as a prerequisite at almost every institution.
A small number of programs accept a single “Essentials of Anatomy and Physiology” course as an alternative to the two-semester sequence. Des Moines Area Community College, for example, accepts either BIO 164 (Essentials A&P, single course) OR both BIO 168 and BIO 173 (the full A&P I + II sequence). However, this single-course option is the exception, not the rule. Most programs require the full two-semester sequence and will not accept a condensed version. If you’re uncertain, take the full sequence — it’s the universally accepted path, and the additional time investment is small.
The standard credit allocation is 4 credit hours per semester, totaling 8 credit hours across A&P I and II. Some programs require 6 credit hours total (3 + 3), particularly older curricula or programs that pair a lecture-only A&P sequence with separate lab courses. A few programs require up to 10 credit hours total. Check your specific target program’s requirements, but assume 8 credit hours is the working baseline.
This deserves emphasis because it’s where many applicants get tripped up. CODA programs require A&P with lab, not lecture-only A&P. The lab requirement is structural — dental hygiene practice requires hands-on familiarity with anatomical structures (especially in the head and neck), and admissions committees treat lecture-only A&P as inadequate preparation. Take A&P with lab from the start; do not assume you can substitute a lecture-only version and add a separate lab later (you usually cannot).
Online A&P courses can satisfy the lab requirement when the course includes a virtual lab component, simulation-based dissection, or a kit-based at-home lab. The key question for any online provider is whether their A&P I and II courses include lab credit on the official transcript — not just lab content embedded in the lecture portion. Reputable online providers will confirm this in writing before you enroll. (PrereqCourses.com’s BIO 270 and BIO 275 both include lab and appear on official Upper Iowa University transcripts as 4-credit courses with lab — exactly matching the format CODA programs expect.)
Most programs require a minimum grade of C in each A&P course; some require C+ or B-. A grade of C-minus is generally not sufficient. The grade requirement is not just an admissions filter — it’s an academic-honesty floor. Programs have learned that students who barely pass A&P struggle in the first semester of the dental hygiene curriculum, where head and neck anatomy is taught at advanced clinical depth. A C-minus in A&P is a strong signal of likely struggle in dental hygiene’s clinical curriculum.
In practice, competitive applicants need much higher than a C. At programs with ranking-based admissions (the majority), every grade point in A&P translates to admission points. A B in A&P puts you on the bubble; an A puts you at the top of the candidate stack. The math is harsh: at programs admitting 20–30 students per cycle from 100–300 applicants, even strong candidates with B grades in A&P often end up on waitlists. Aim for an A. We’ll cover study strategies later in this article.
This is the requirement that catches the most career-changers off guard. Most CODA programs require A&P (and other science prerequisites) to have been completed within the last 5 to 7 years prior to application. Goodwin University, for example, requires A&P within the last 5 years with a C+ or better. College of DuPage requires prerequisite science courses within 5 years of application. Pikes Peak State College requires science courses within 7 years of application. Indiana University’s BSDH program requires all science courses within the past 5 years, and the University of Maryland’s program requires science courses within 7 years of application. The exact recency varies by program — verify yours specifically.
If your A&P credits are older than the time limit, you’ll need to retake them. There are no shortcuts — programs do not generally accept “refresher” courses or CLEP exams in lieu of fresh A&P credit. For applicants in this situation, see our How to Refresh Expired Prerequisites for Dental Hygiene School for the specific refresh strategy.
CODA programs accept transfer credit only from regionally accredited institutions — accreditation by one of the seven regional accreditors recognized by the U.S. Department of Education. Nationally accredited or unaccredited courses are not accepted. This rule eliminates many cheap online “prerequisite” providers immediately. PrereqCourses.com’s A&P courses are delivered through Upper Iowa University, which holds Higher Learning Commission regional accreditation — the courses transfer to CODA programs nationwide for this reason.
Most applicants understand that A&P is required. Fewer understand how much it actually drives admissions decisions. The disproportionate weight A&P carries is worth explaining, because once you understand it, your study strategy and provider choice become much clearer:
In the typical CODA prerequisite stack of 18–25 credits, A&P represents 8 of those credits — roughly one-third of the entire science prerequisite assessment, and the largest single subject. When admissions committees calculate a prerequisite GPA, A&P is automatically the most influential single component. A high grade in A&P pulls your prerequisite GPA up substantially; a low grade pulls it down disproportionately.
Multiple studies in dental hygiene education research have shown that A&P performance is the strongest single predictor of first-semester clinical performance in dental hygiene programs. Students who earned an A in A&P consistently outperform students who earned a B in the head and neck anatomy and oral histology coursework that dominates the first dental hygiene semester. Admissions committees know this — they’re not just checking a box, they’re trying to predict who will succeed in their program. Programs report attrition rates between 5–15%, and the most common cause is academic struggle in the first semester. A&P grades are the best available signal of who’s likely to make it.
Some programs make this explicit. Minnesota State Community and Technical College’s published admissions process states that the grade in BIOL 2260 Human Anatomy & Physiology I is used as a tiebreaker when applicants are tied on total points. At programs with point-based admission scoring, A&P grades aren’t just averaged in — they’re the deciding factor when the math gets close. An applicant with a B in A&P I will lose to an applicant with an A in A&P I if every other factor is equal.
A&P is structurally similar to the dental hygiene curriculum’s first year — a high volume of detailed anatomical and physiological content, learned at a fast pace, requiring memorization of hundreds of terms while also understanding underlying systems. Programs treat A&P as a real-world preview of their own curriculum’s intensity. An applicant who struggled through A&P signals (correctly) that they may struggle through dental hygiene’s first semester, where the volume and pace are similar.
Knowing the content in advance makes the course faster to complete and easier to study for. Here’s the standard scope of what A&P I and II cover at most regionally accredited institutions:
The biggest decision most prospective dental hygiene students face for A&P is where to take it. The answer is more nuanced than “online” versus “in person.” Here’s how to think about the trade-offs:
The traditional path. Tuition typically runs $200–$400 per credit ($1,600–$3,200 for the full 8-credit sequence). The advantages are predictable: in-person lab access with cadaveric models or wet specimens, structured semester pacing, direct instructor access during office hours, and face-to-face study group formation.
The disadvantages are practical. Most community college A&P courses run 16-week semesters, with limited summer offerings. Working students often can’t attend daytime sections, and evening sections fill quickly. If you live in an area without convenient community college access — rural areas, certain urban housing situations, or anywhere with significant commute friction — the practical cost (in time and gas) often exceeds the listed tuition. And the timeline is the killer: completing A&P I in fall and A&P II in spring takes a full academic year. For working DAs and career-changers on a hurry, that’s often unacceptable.
Online A&P from a regionally accredited institution has become the dominant path for working pre-hygiene students. Total tuition typically runs $1,000–$1,500 per course ($2,000–$3,000 for the full 8-credit sequence) — comparable to community college on price. The advantages are timing-driven: many online providers offer self-paced or 8–12 week course structures, with rolling start dates rather than fixed semester schedules. Students working full-time can complete A&P I and II in 4–6 months instead of a full academic year, without compromising on accreditation or transferability.
The trade-offs are real but manageable. Lab is delivered through virtual simulation, dissection software, or kit-based at-home labs (which work surprisingly well for the surface anatomy and physiology focus of undergraduate A&P). You won’t dissect a cadaver. But for dental hygiene admissions purposes, the lab credit on your transcript carries the same weight regardless of delivery format — what programs care about is the official transcript line item.
The timing of when you take A&P matters almost as much as where. Here’s how to think about sequencing it within your overall application timeline:
Most CODA programs admit students once per year, typically with applications due in the fall or winter for a fall start the following year. The optimal A&P timing is:
This is a tempting compression strategy that almost always backfires. A&P II builds on A&P I content — particularly cellular biology, tissue types, and basic anatomical orientation. Students who take both simultaneously tend to underperform in both, ending up with B grades where sequential study would have earned A grades. The two-course sequence is sequenced for a reason.
The exception: very experienced students with prior science backgrounds (current DAs with clinical experience, EMTs, paramedics, RNs, or military medical corpsmen) sometimes successfully take A&P I and II in parallel. If you don’t fit one of those profiles, take them sequentially.
If you take A&P now and don’t apply for 4 years, you’ll be near the recency limit at most programs by application time. Plan A&P timing such that your courses will be no more than 3–4 years old at application — leaving headroom for an unexpected delay (illness, financial change, family circumstances) that pushes your application timeline back.
Given how heavily A&P is weighted in admissions, the difference between a B and an A in A&P often determines which CODA program you get into. Here’s how successful pre-hygiene students approach the course:
A&P is unusual because it requires both rote memorization (hundreds of structures, terms, and Latin/Greek roots) and conceptual understanding (how systems integrate). Students who treat it as pure memorization fail the conceptual exam questions; students who treat it as pure conceptual learning fail the identification questions. Plan for both modes.
A&P content volume defeats cramming. Most successful students study A&P 30–60 minutes per day, six days a week, throughout the course — far more effective than 4–6 hour study sessions concentrated before exams. The frequent-exposure pattern matches how anatomical terminology actually consolidates in memory.
Reading the textbook is necessary but insufficient. Top-performing A&P students supplement with:
Pre-hygiene students have a study advantage other A&P students don’t: clinical motivation. When you study the trigeminal nerve, study it as the nerve you’ll be administering local anesthesia to as a hygienist. When you study lymph nodes, study them as the nodes you’ll be palpating during every patient examination. When you study the cardiovascular system, connect it to the antibiotic prophylaxis decisions you’ll make for patients with cardiac conditions. This connection-building is both motivating and effective — clinical context is one of the strongest memory aids known to learning science.
Yes, at the majority of CODA-accredited dental hygiene programs, with three caveats: the course must be from a regionally accredited institution, must include lab on the transcript, and must match the credit hour structure your target program expects (typically 4 credits each for A&P I and II). Verify with your specific program’s admissions office before enrolling, but the answer is yes for most programs at this point — online accredited A&P has become widely accepted as on-campus capacity has tightened and prerequisite delivery has shifted.
Most CODA programs require 8 credit hours total (4 credits each for A&P I and A&P II), both with lab. Some programs require 6 credit hours (3 + 3). A small number require up to 10. Confirm your specific program’s requirements; assume 8 credits as the working baseline.
You need A&P with lab. Lecture-only A&P is generally not accepted by CODA programs. The lab requirement is structural — dental hygiene is a clinical profession, and admissions committees treat hands-on lab experience as foundational. Take A&P with lab from the start; do not assume you can substitute lecture-only and add a separate lab later.
Most programs require A&P (and other science prerequisites) to have been completed within the last 5 to 7 years. The exact recency varies by program — Goodwin University requires 5 years, Pikes Peak State College requires 7 years, College of DuPage requires 5 years. If your A&P credit is older than the recency limit at your target program, you’ll need to retake it.
Programs generally require a minimum grade of C, sometimes C+. But the minimum grade is rarely competitive — at programs admitting 20–30 students from 100–300 applicants, candidates with C or B grades in A&P routinely lose seats to candidates with A grades. Plan to earn an A. The course is challenging but learnable with deliberate study, and the admissions impact of an A versus a B is often the difference between acceptance and waitlist.
Possible at some institutions, but not recommended for most students. A&P II builds directly on A&P I content (cellular biology, tissue types, anatomical orientation), and students taking both simultaneously typically underperform in both compared to sequential study. The exception is students with prior strong science backgrounds — current DAs, EMTs, paramedics, RNs. For most pre-hygiene students, taking the courses sequentially is the better choice.
Probably yes. Most CODA programs enforce a 5–7 year recency rule on science prerequisites. There are limited workarounds — some programs accept a recent grade in a higher-level biology course (microbiology, biochemistry, or pathophysiology) as evidence that you’ve maintained current scientific knowledge, but this is program-specific and shouldn’t be assumed. The cleanest path is to retake A&P I and II from a regionally accredited online provider; the time and cost are smaller than the alternative of being rejected from your target program. See our guide to refreshing expired prerequisites for the full strategy.
Neither, structurally. The content is identical at regionally accredited institutions whether delivered online or in person. The practical difference is self-discipline: online courses require more self-directed time management, while in-person courses provide structural pacing through scheduled class meetings. Students who succeed in online A&P typically succeed because they treat it like a part-time job — scheduled study blocks at fixed times, accountability to a study partner or family member, and immediate engagement with content rather than letting work pile up.
Almost always, yes. Regional accreditation is national in scope — a course from a Higher Learning Commission–accredited Iowa institution transfers to a CODA program in Florida, Texas, California, or New York identically. Geography of the originating institution doesn’t matter; what matters is that the institution is regionally accredited and the credit hours and lab structure match the receiving program’s expectations.
No. AP Biology covers introductory biology content, not anatomy and physiology. A&P I and II are upper-level biology courses with focus on human anatomical structures and physiological systems — content not covered by AP Biology. Most CODA programs explicitly reject AP credit as a substitute for A&P. Take the dedicated A&P I and II sequence.
Anatomy and Physiology is the single most important course in your dental hygiene application. It’s the largest credit block, the most heavily weighted in admissions scoring, the most predictive of clinical success, the most common tiebreaker, and the course where applicants most often lose admission seats. Getting A&P right — in the right format, from the right provider, with the right grade, at the right time — is the single highest-leverage decision in your pre-hygiene preparation.
The path is clear: take A&P I and A&P II with lab, from a regionally accredited institution, totaling 8 credit hours, completed within the last 5 years, with a grade of A in both courses. Take them sequentially, not simultaneously. Time them so they’re complete and on transcript before your application deadline, with at least 12 months of recency headroom. Whether you take them online or in person matters less than whether you complete them with full focus and earn the grade that gets you accepted.
PrereqCourses.com offers online A&P I (BIO 270) and A&P II (BIO 275), each as a 4-credit course with lab, delivered through Upper Iowa University (Higher Learning Commission regional accreditation). Both courses are accepted by CODA-accredited dental hygiene programs nationwide. The full 8-credit sequence is priced at $1,390 — comparable to in-state community college tuition, with self-paced flexibility that lets working dental assistants and career-changers complete both courses in 4–6 months instead of a full academic year. Browse the A&P courses on PrereqCourses.com to verify the course format, credit structure, and accreditation before you enroll, and confirm transferability with your target dental hygiene program’s registrar.
About this article
Information about specific CODA program prerequisite requirements is accurate as of publication based on each program’s published admissions materials. Requirements can change — verify with your specific target program’s admissions office before relying on details. Time limits, credit hour structures, minimum grade requirements, and lab requirements vary by program. PrereqCourses.com cannot guarantee transfer acceptance at any specific CODA program; we strongly recommend confirming transferability with your target program’s registrar before enrolling.
Related articles in our dental hygiene series:
• Dental Hygiene Prerequisites: The Complete Guide — every prerequisite course required by CODA programs, not just A&P.
• Online Dental Hygiene Prerequisites Accepted by CODA Programs — which online prerequisite providers transfer cleanly to CODA programs nationwide.
• How to Refresh Expired Prerequisites for Dental Hygiene School — strategy for career-changers whose A&P credits are past the recency limit.
• Dental Assistant to Dental Hygienist: The Bridge Pathway Explained — for working DAs planning the upgrade to RDH.
• Dental Assistant to Dental Hygienist Salary: Is the Bridge Worth It? — full ROI analysis with current BLS salary data.
• Tuition Reimbursement for Dental Assistants Pursuing Dental Hygiene — how to get your employer to fund part of your A&P and program tuition.
