Baby

Biceps curl with barbell

The biceps curl builds strength in the upper arm. See how it's done.

Hand transplant

Watch this video to see how a hand transplant is performed.

Ovulation

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

Amoxicillin: Antibiotic Action and Appropriate Uses

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

• Amoxicillin

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.