Blood is a biological red liquid circulating in the arteries
under the impulse of the heart.
An individual contains 5 to 7 L of blood in his body
, which represents about 8% of its total weight.
Blood is made up of plasma
, red blood cells
, white blood cells
It distributes oxygen, hormones and nutrients to all cells, all tissues and all organs of the body
, then get rid of their waste.
Blood also plays a role in immune defense.
Published by Crashounette
Latest update on August 19, 2014 at 12:31 PM by christelle.b.