Physiology goes hand-in-hand with anatomy, but you’ll understand it better if you have done some anatomy first. In fact, having a basic knowledge of chemistry, biochemistry, and biology will make it much easier to learn physiology. And you can join the anatomy and physiology subreddit at r/AnatomyandPhysiology.

You’ll find physiology courses from Duke and Penn as well as some that include anatomy in this Best Courses Guide (BCG), compiled from ratings and reviews in Class Central’s catalog of over 480 physiology courses.

Click on the shortcuts for more details:

• Top Picks
• BCG Stats
• Why You Should Trust Us
• How We Made Our Picks and Tested Them

Here are our top picks

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BCG Stats

• All the courses are free or free-to-audit.
• 2 courses offer a verified certificate when you pass the graded quizzes.
• The two Coursera courses have a combined enrollment of over 900K.
• The three YouTube courses combined have been viewed more than 30M times.

Best General Physiology Course (Duke University)

Introductory Human Physiology is a rigorous course from Duke University that is on Class Central’s Best Online Courses of All Time list. You’ll start with a comprehensive look at homeostasis before learning about the nervous, endocrine, cardiovascular, respiratory, urinary, gastrointestinal, and reproductive systems. It’s an excellent resource for students, for MCAT preparation or a refresher for people in the medical field, but interested non-medical learners will also benefit. Also available in Chinese.

“You learn a lot from this! Very interesting, the two professors make the learning experience great by making the complex material (for a beginner) understandable!” – Anonymous

Also Great General Physiology Course (Armando Hasudungan)

Armando Hasudungan has used his excellent drawing skills to create many videos, including the Physiology playlist that’s been viewed over a million times. Follow along as he explains many aspects of physiology, building up a visual story. Starting with gastric acid secretion, you’ll learn about the various organs and systems and their functions, plus some common disorders. You’ll even learn about the physiology of coughing and vomiting.

“Oh my goodness, thank you so much for this video!!! It’s 10000000x more understandable than my textbook. This is going to definitely help me for my essay. Thanks so much again!” – @afhskwifbwkl5900

Best Anatomy and Physiology Course (CrashCourse)

With more than 28 million views, Anatomy & Physiology by CrashCourse is the most popular course in both this list and our Anatomy BCG. The ever-reliable Hank Green from CrashCourse will teach you about the chemistry and cell biology of systems in the human body and how tissue types define the function of each organ system. You’ll learn how the failure of an organ system can lead to disease, how energy is changed into different forms throughout the body, and how to break down the names of anatomical systems using Greek and Latin root words.

“The educational videos were so good as they helped me understand the anatomy and physiology of the human body…” – Myrielle Anne Francisco.

Also Great General Anatomy and Physiology Course (Professor Dave Explains)

Anatomy & Physiology by Professor Dave Explains (Dave Farina) is another popular video course covering anatomy and physiology. You’ll learn about epithelial and connective tissues, bones, joints, and muscles, then move on to the endocrine, nervous, and circulatory systems. Then you’ll study the immune, respiratory, respiratory, digestive, and urinary systems. Finally, reproduction, the heart, the brain, and the digestive system are explored.

“I’ve learned a lot by attending this course. The lecturer is very good…” – Folorunso Olamilekan Mathew.

Best Course Relating Physiology to Health (University of Pennsylvania)

Vital Signs: Understanding What the Body Is Telling Us. Maybe you’re not in the medical field but would like to know more about how your body works. Or maybe you are in the medical field and want a practical course that explains in clear terms what various signs and symptoms mean. Presented by a Professor of Nursing, the six modules cover pulse and heart rate, blood pressure, metabolism, temperature, respiration rate, and pain. Normal and abnormal cases are discussed. Models, graphs, and diagrams will help you grasp the material in this engrossing course that is also in Class Central’s Best Online Courses of All Time list. I took this course back in 2015 and am considering repeating it to refresh my knowledge.

“This is a course that I should have taken even before medical school…” – Aedrian Abrilla

Why You Should Trust Us

Class Central, a Tripadvisor for online education, has helped 80 million learners find their next course. We’ve been combing through online education for more than a decade to aggregate a catalog of 250,000 online courses and 250,000 reviews written by our users. And we’re online learners ourselves: combined, the Class Central team has completed over 400 online courses, including online degrees. I’ve personally completed over 200 online courses in a variety of topics including physiology.

How We Made Our Picks and Tested Them

Trying to find “the best” can be daunting, even for those of us who live and breathe online courses. Here’s how I approached this task.

First, I combed through Class Central’s Catalog to find a variety of courses, some with certificates. You don’t need to enroll in a university to learn about physiology.

I extracted information from course syllabi and reviews, and compiled their ratings, leveraging the Class Central database with its thousands of course ratings and reviews written by our users as well as available course provider enrollment numbers and ratings. I watched some course videos to sample courses I hadn’t already taken. Then, I defined the scope for these recommendations. A physiology course can cover various areas, so I chose top courses from a range of sub-fields.

Ultimately, I used a combination of data and my own judgment to make these picks. I’m confident these recommendations will be a reliable way to learn about physiology.