|
|
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?
Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.