|
|
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.