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Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Heart Diagram Heart Diagram
Although Neandertal brain sizes fall well within the modern human range, their EQ is lower than mode Although Neandertal brain sizes fall well within the modern human range, their EQ is lower than mode
External anatomy of the heart External anatomy of the heart
The lower respiratory tract and the process of gas exchange. The lower respiratory tract and the process of gas exchange.
Venous return to the heart and blood flow to the lungs. Venous return to the heart and blood flow to the lungs.
Vessels of the heart: Posterior Vessels of the heart: Posterior
Video: Requirements for nervous signals

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