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Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Electron micrographs of a cellular membrane. Electron micrographs of a cellular membrane.
cell membrane cell membrane
Membrane potential of a cell freely permeable to sodium only. Membrane potential of a cell freely permeable to sodium only.
Calcium metabolism in osteoporosis: (a) bone deposition equals bone resorption; (b) bone resorption ... Calcium metabolism in osteoporosis: (a) bone deposition equals bone resorption; (b) bone resorption ...
Lines of the lateral thorax Lines of the lateral thorax
The cystic fibrosis protein is a membrane protein. The CFTR protein is located in the plasma membran The cystic fibrosis protein is a membrane protein. The CFTR protein is located in the plasma membran
Video: Forming urine ( influencing factors), Forming dilute urine & Forming concentrated urine

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