Blood is the body's transport system . Blood carries
oxygen and other nutrients to every tissue and cell.
Heart acts as a pumps and drives the blood all around
the body. When you examine blood you will see RBC,WBC,
Platelets, Plasma and other components. Red blood cells
(RBC) carry oxygen, white blood cells (WBC) destroy
the harmful organism that enter our body. Platelets
are the smallest blood cells . Platelets are for sealing
punctures or cuts. Whenever there is bleeding, platelets
come together and form a plug or a seal. If platelets
donot function, a person can bleed to death. Unwanted
clumping of platelets also create a problem.