Blood is a vital fluid that carries oxygen and nutrients to all parts of the body, removes waste, helps fight infections, and is made up of plasma, red blood cells, white blood cells, and platelets.
Plasma is the liquid state of blood.
Platelets help to stop the blood from flowing out.
Functions of blood:
Carries oxygen from lungs to body and carbon dioxide back to the lungs.
Transports nutrients from the digestive system to cells.
Removes waste from cells to organs like the kidneys.
Protects the body from infections.
Clot wounds to prevent too much blood loss.
Maintains temperature and balance of fluids in the body.
There are 4 types of blood
A
B
AB
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