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Blood

Articles

Antibodies Arterial pulse Blood alcohol concentration Blood disorders Blood brain barrier Blood cells Blood circulation Blood coagulation Blood flow Blood groups Blood plasma Blood platelets Blood pressure Blood pressure disorders Blood proteins Blood serum Blood sugar Blood transfusion Blood vessels Blood volume Cerebral blood flow Cerebral hemorrhage Diastolic pressure Hemodialysis Hemoglobin Hemorrhage Immunoglobulins Leucocytes Serum albumin Systolic pressure This box: view • talk • edit

A blood cell (also called blood corpuscle) is any cell of any type normally found in blood. In mammals, these fall into three general categories:

• Red blood cell, whose main purpose is the transport of oxygen;
• White blood cell, which produces antibodies to fight infection;

• Platelet, which is actually a fragment of the large bone marrow cells known as megakaryocytes and are important in blood clotting.

Together, these three kinds of blood cells sum up for a total 45% of blood tissue (55% is plasma).

See also

• Erythrocytes
• Leucocytes

External links

• What is Blood? from the Genetic Science Learning Center at the University of Utah.
• Cells of the blood