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Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

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Thyroid conditions may make getting pregnant impossible.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Human Body Muscle Diagram Human Body Muscle Diagram
Organization of the human body. Organization of the human body.
The digital image of a fetus shows a well-developed head and a comparatively smaller body. At 7 ... The digital image of a fetus shows a well-developed head and a comparatively smaller body. At 7 ...
Dermatomes of body, anterior view Dermatomes of body, anterior view
Adult sponge, with a porous, asymmetrical body. Adult sponge, with a porous, asymmetrical body.
Roundworm Body Plan Roundworm Body Plan
Video: Role of the urinary system - acidosis and alkalosis

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