Upper body stretches for the workplace

Psoriasis

Animation of the skin layers and normal function of skin cells showing the immune response and what goes wrong in the skin cells causing psoriasis.

Vasectomy Proceedure

This animation shows a vasectomy procedure. A vasectomy is a procedure to cause permanently sterility in a man by preventing the transport of sperm out of the testes. A small incision is made in the scrotum and each vas deferens is tied off and cut apart preventing sperm from being released within the ejaculate. The small skin incision is stitched closed and the surgery does not affect a man's sexual function.

• Men's Health

Amoxicillin: Antibiotic Action and Appropriate Uses

A look at how amoxicillin works and which bacterial infections it can treat

• Amoxicillin

Cataract

This animation depicts how a cataract is seen in the eye.

• Vision

Seated hamstring curl with weight machine

The seated hamstring curl with weight machine exercise targets the back of the thigh. See how it's done.