Know Your Blood

Some Interesting Facts About Blood

It is a red colored, viscous liquid, which flows in the blood vessels throughout the body.
Blood plays two vital roles: it transports nutrients within the entire body and it acts as our body's major defense mechanism against infection.
An average adult has about 5 liters of blood in the body.
There is no substitute for human blood.
Blood makes up about 7 to 8% of your body's weight.
Blood carries carbon dioxide and other waste products back to the lungs, kidneys and liver for disposal.
helps heal wounds.
Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume).
When you donate blood, your body immediately starts replacing the quantity donated. That way you are fit to donate blood as often as 6 times a year.

Cellular Components are further classified as Red Blood Cells, White Blood Cells and Platelets.