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Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Summary of events in the killing of virus-infected cells by cytotoxic T cells. Summary of events in the killing of virus-infected cells by cytotoxic T cells.
The biconcave disk shape of erythrocytes (red blood cells). The biconcave disk shape of erythrocytes (red blood cells).
Mouse trachea and its red blood cells Mouse trachea and its red blood cells
Release of Acetylcholine During the Sleep–Waking Cycle Release of Acetylcholine During the Sleep–Waking Cycle
Steps in acute inflammation. Steps in acute inflammation.
B Cells: Development of Self-Recognition and Self-Tolerance B Cells: Development of Self-Recognition and Self-Tolerance
Video: Complement Proteins Animation

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