Cerebral aneurysm

Concussion

This animation shows the head receiving two impacts. One on the front, and one on the side from a boxing glove.

• Headache
• Pain

Athetosis resulting from basal ganglia injury

This animation illustrates the location of basal ganglia in the brain. Injury to the basal ganglia may result in athetosis (constant writhing movements of the body).

• Injury
• Headache

Seated leg press with weight machine

The leg press exercise strengthens the lower body. See how it's done.

Epinephrine and exercise

This animation shows the release of epinephrine and its effect of the heart.

• Exercise & Fitness

Mitral valve regurgitation

Mitral valve regurgitation is shown in this video.