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?
The average adult has about 21 square feet of skin.
Did you know?
Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
Did you know?
Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Views of Earth’s Surface
The Venusian Surface
Mucosal surface of the small intestine.
Near-Surface Winds
The European Alps have lost ~30% to 40% of surface area and ~50% of volume since the 1850s.
Transverse section and anterior surface of medulla oblongata