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Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

General features of a growth factor or hormone signalling pathway that promotes cell division General features of a growth factor or hormone signalling pathway that promotes cell division
scanning electron micrograph showing an ovum (pink) released by the ovary at ovulation surrounded by scanning electron micrograph showing an ovum (pink) released by the ovary at ovulation surrounded by
Growth hormone disorders. Illustration of a pituitary giant and a pituitary dwarf, both adults of ab Growth hormone disorders. Illustration of a pituitary giant and a pituitary dwarf, both adults of ab
Control of Circadian Rhythms in Sleep and Waking by the SCN During the day cycle, the DMH inhibits t Control of Circadian Rhythms in Sleep and Waking by the SCN During the day cycle, the DMH inhibits t
Maturation of a follicle and release of egg. Maturation of a follicle and release of egg.
Gonadotropin-releasing hormone (GnRH) Gonadotropin-releasing hormone (GnRH)
Video: Lactation and Breast Feeding

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