Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Everyone has one nostril that is larger than the other.
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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.
Muscular system
An example of a homeostatic control system.
Typical wiring diagram of a V-6 distributorless (direct fire) ignition system.