Parkinson

Retina

This animation shows the process in which light is transformed by the retina as electrical impulses that travel to the brain through the optic nerve.

• Vision

Migraine aura

A migraine aura is usually visual, but can also be a sensory, motor or verbal disturbance. This animation shows what happens when you have a migraine aura.

Step-up exercise for legs and buttocks

The step-up is an exercise for the legs and buttocks. See how it's done.

Shoulder joint dislocation

This animation shows a dislocation of the shoulder joint.

• Injury
• Joint Pain

Endoscopic mucosal resection

Endoscopic mucosal resection is used to remove suspicious tissue from your digestive tract.