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Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

A female gorilla exhibiting tool use by using a tree trunk as a support whilst fishing herbs. A female gorilla exhibiting tool use by using a tree trunk as a support whilst fishing herbs.
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Warning stamped on the side of a punch that goggles should be worn when using this tool. Always ... Warning stamped on the side of a punch that goggles should be worn when using this tool. Always ...
Ford spring-lock connectors require a special tool for disassembly. Ford spring-lock connectors require a special tool for disassembly.
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Ringworm is a local contraindication for massage. Centers for Disease Control and Prevention. Ringworm is a local contraindication for massage. Centers for Disease Control and Prevention.
Video: Cardiac Cycle (Part 3 of 4)

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