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Images, Animations, Interactives, and Simulations

To Help Explain and Explore Human Anatomy and Physiology

Cross section of a skeletal muscle (illustration; diagram)

Open-Source Materials

Free artwork designed for presentations, publications, videos, quizzes, and flashcards.


Simple, colorful, and accurate representations of anatomical structures and physiological processes.

Lungs, trachea, and heart - anterior view
Synaptic junctions
Acetylcholine (ACh) receptor
Acetylcholine (ACh) release
Acetylcholine (ACh) binds to receptors
Acetylcholine (ACh) channel opens
Sodium (Na+) and potassium (K+) pass through chemical-gated channel
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Image Sets

Illustrations that sequentially show biological activities, interactions, and pathways.


Continuous motion displays that help students visualize and summarize physiological events.

Cardiac cycle animation

Interactives and Quizzes

Exercises designed to help students investigate and new concepts and structures and assess their level of understanding.

Simulations for Labs

Virtual exercises that replicate classroom lab activities and allow students to work with test equipment, generate data, and analyze results.

Mobile Friendly

Detailed 2-D reproductions of structures and processes that display well on desktops, tablets, and smartphones.