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Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

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There are 20 feet of blood vessels in each square inch of human skin.

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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Acromegaly. Photo of a woman illustrating the enlarged skull, jaw, and hands typical of acromegaly. Acromegaly. Photo of a woman illustrating the enlarged skull, jaw, and hands typical of acromegaly.
Tonsils—normal and enlarged. Tonsils—normal and enlarged.
Signs and symptoms of chronic liver failure. Signs and symptoms of chronic liver failure.
Gastric cancer. In advanced stages of gastric cancer, malignant cells spread to form tumors in the l Gastric cancer. In advanced stages of gastric cancer, malignant cells spread to form tumors in the l
Liver Liver
First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl
Video: Optic Nerve and Optic Disk Animation (Part 1 of 2)

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