Unstable molecules formed as byproducts of the body's normal chemical processes. In excess, oxygen free radicals can damage cell membranes...

A painless diagnostic test that measures the amount of oxygen in a person's blood. The test does not require a...

Drugs used to cause more frequent ovulation; fertility drugs. Ovulation stimulants are prescribed when a woman has difficulty conceiving because...

Inflammation of the external ear canal due to a bacterial infection that produces tenderness and severe pain in the ear,...

A benign bone-forming tumor, which may occur anywhere but usually occurs in the legs, particularly the thighbone (femur). It occurs...

Inflammation in the upper part of the shin bone that connects to the tendons around the kneecap. It is most...

The agreement to take healthy organs or tissues from one person to replace damaged organs or tissues in another person....

A break in any of the seven bones that form the eye socket (orbit). Orbital fractures commonly result from blunt...

Inflammation of the optic nerve. If the inflammation affects the nerve where it connects with the back of the eye,...

Genes that contribute to the transformation of normal cells into cancerous cells. Normal cell growth can go wrong when a...