There are more sensory neurons in the tongue than in any other part of the body.
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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 average adult has about 21 square feet of skin.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
Enzymes: Note the enzyme has the ending ase as in sucrase and the actual substrate is sucrose.
Typical timing marks. The numbers of the degrees are on the stationary plate and the notch is on ...