Chest press with weight machine

Hearing and the Cochlea

This animation shows the various structures of the ear and the process of hearing.

• Hearing

Ovulation

The release of an egg from a woman's ovary occurs about midway through the menstrual cycle. See how it happens.

Bent-over row with dumbbell

The bent-over row with dumbbell targets the back of the shoulder. See how it's done.

Stroke - secondary to cardiogenic embolism

This animation shows a piece of clot breaking away from the heart, travelling to the brain, resulting in a stroke.

• Stroke

HIV Animation

This animation shows the HIV molecule, its components, and what it does inside the body to an infected person.