During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
Did you know?
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?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
The life cycle of HIV
The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after