---
title: Physiology
description: Physiology is the study of how the organs and systems of the human body function. Learners will understand the physical and chemical processes that maintain homeostasis, including cardiovascular, respiratory, renal, and endocrine system operations.
category: health-medicine
subcategory: medical-sciences
difficulty: beginner, intermediate, advanced
url: /subject/physiology
---

# Physiology

Physiology is the study of how the organs and systems of the human body function. Learners will understand the physical and chemical processes that maintain homeostasis, including cardiovascular, respiratory, renal, and endocrine system operations.

## Available Resources

4 Books • 2 Courses • 6 Websites

## Websites

### 1. TeachMePhysiology

Reference site organising human physiology into short, illustrated articles by system, covering cardiovascular, respiratory, renal, endocrine, gastrointestinal and neural topics, each with labelled diagrams and clinical relevance notes. Useful for looking up a mechanism or revising before medical exams.

**Difficulty:** Beginner | **Price:** Free

**Link:** https://teachmephysiology.com/

**Tags:** human-physiology, organ-systems, medical-education, reference, diagrams

### 2. Khan Academy Physiology

Short videos and practice questions covering circulation, gas exchange, neurons, muscles, and the endocrine and immune systems, giving beginners a working picture of how human organ systems stay regulated and interact.

**Difficulty:** Beginner | **Price:** Free

**Link:** https://www.khanacademy.org/science/biology/human-biology

**Tags:** human-biology, organ-systems, physiology-basics, khan-academy, video-lessons

### 3. AcidBase.org: Stewart's Textbook of Acid-Base

Clinician-run site for Stewart's Textbook of Acid-Base, presenting the quantitative physicochemical approach to acid-base physiology with an online analyzer tool. Readers learn to interpret blood gases using strong ion difference, weak acids and carbon dioxide in critical care practice.

**Difficulty:** Advanced | **Language:** English | **Price:** Free

**Link:** https://acidbase.org

**Tags:** acid-base-physiology, stewart-approach, strong-ion-difference, blood-gas-interpretation, critical-care

### 4. Khan Academy Health and Medicine

Free video lessons and practice questions from Khan Academy on human anatomy and physiology organized by organ system, with material on common diseases, diagnostic tests and treatments. Learners build the foundational biomedical vocabulary and mechanisms needed before clinical training or MCAT and NCLEX study.

**Difficulty:** Beginner | **Language:** English | **Price:** Free

**Link:** https://khanacademy.org/science/health-and-medicine

**Tags:** anatomy, physiology, pathophysiology, pharmacology, premedical

### 5. getbodysmart.com

GetBodySmart is an anatomy and physiology learning site offering clear tutorials, animations, and interactive diagrams organized by body systems, plus quizzes to test your understanding.

**Difficulty:** Intermediate | **Language:** English | **Price:** Free

**Link:** https://getbodysmart.com

**Tags:** websites, science-research, biology

### 6. physiologyweb.com

PhysiologyWeb is a free online resource offering clear tutorials, diagrams, and explanations of core physiology topics—from cellular physiology to neuro, cardiovascular, respiratory, renal, GI, and endocrine systems—designed for students and exam prep.

**Difficulty:** Intermediate | **Language:** English | **Price:** Free

**Link:** https://physiologyweb.com

**Tags:** websites, health-medicine, medical-sciences

## Courses

### 1. Anatomy & Physiology

A free course covering the body's major organ systems, from cells and tissues to the circulatory, respiratory, nervous, and musculoskeletal systems. Explains how each system's structure supports its function, with videos and practice questions.

**Difficulty:** Beginner | **Price:** Free

**Link:** https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology

**Tags:** anatomy, physiology, human-body, organ-systems

### 2. Introduction to Human Physiology

Explore the fascinating world of human physiology and learn about the body's organ systems, their functions, and how they maintain health. In this comprehensive course, you will:

- Master key concepts in human physiology and homeostasis
- Delve into the nervous, endocrine, cardiovascular, respiratory, and urinary systems
- Examine the role of senses, muscles, gastrointestinal, and reproductive systems
- Apply knowledge to real-life situations and medical conditions

This course is perfect for students, healthcare professionals, and anyone interested in human physiology and biology, building upon a basic understanding of human anatomy. This course is an excellent resource for MCAT preparation or as a refresher for health professionals. 

As a bonus, enhance your learning with a unique immersive virtual reality (VR) experience, accessible on both VR and desktop platforms, that takes you on an incredible journey inside the human body. This course offers a captivating way to explore and understand complex physiological concepts, as you virtually shrink to navigate through blood vessels and then return to normal size to measure blood pressure. The course comes to life as an educational adventure.

**Difficulty:** Beginner | **Language:** English | **Duration:** 22 hours of videos and assessments | **Price:** Free

**Link:** https://www.coursera.org/learn/physiology

**Tags:** courses, health-medicine, medical-sciences

## Podcasts

### 1. Physiology by Physeo

**Author:** InsideTheBoards

Physiology by Physeo is a collaboration between InsideTheBoards and Physeo. This podcast aims to provide a high yield review of medical school physiology intended for first and second year medical students (especially those preparing for the USMLE Step 1 or COMLEX Level 1).

**Difficulty:** Beginner | **Language:** en | **Price:** Free

**Link:** https://physiologybyphyseo.podbean.com

**Tags:** physiology, usmle-step-1, medical-education, exam-prep

## Books

### 1. Guyton and Hall Textbook of Medical Physiology

**Author:** John E. Hall

The standard medical school reference on human physiology, organized by organ system from cell membranes to cardiovascular, renal, respiratory, and endocrine function. Explains mechanisms in enough depth to reason about clinical disorders rather than memorize facts.

**Difficulty:** Intermediate | **Language:** English | **Price:** Paid

**Link:** https://www.amazon.com/dp/145577006X?tag=edmonddante07-20

**Tags:** books, science-research, biology

### 2. Physiology

**Author:** Linda S. Costanzo

A condensed medical physiology text covering cellular, cardiovascular, respiratory, renal, gastrointestinal, and endocrine systems with worked equations and clinical cases. Readers finish able to apply core physiological principles to board-style problems without wading through a full reference volume.

**Difficulty:** Intermediate | **Language:** English | **Price:** Paid

**Link:** https://www.amazon.com/dp/1416023208?tag=edmonddante07-20

**Tags:** books, health-medicine, medical-sciences

### 3. Human Physiology

**Author:** Lauralee Sherwood

An undergraduate text building from cell membranes and homeostasis up through nerve, muscle, cardiovascular, and endocrine systems. Each chapter ties mechanism to whole-body regulation, so students can explain how systems compensate when one variable is disturbed.

**Difficulty:** Intermediate | **Language:** English | **Price:** Paid

**Link:** https://www.amazon.com/dp/130527329X?tag=edmonddante07-20

**Tags:** books, science-research, biology

### 4. Medical Physiology

**Author:** Walter F. Boron, Emile L. Boulpaep

Graduate-level reference grounding organ-system physiology in molecular and cellular mechanism, with heavy coverage of membrane transport, signalling, and ion channels. Suited to readers who want the biophysical derivation behind a process rather than a summary of the result.

**Difficulty:** Intermediate | **Language:** English | **Price:** Paid

**Link:** https://www.amazon.com/dp/1416023283?tag=edmonddante07-20

**Tags:** books, health-medicine, medical-sciences

---

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