Blood cell

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List of terms related to Blood cell

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

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 cells
• White blood cells
• Platelets

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

Comparison

cell type	Primary function	Lifetime
Red blood cells	transport of oxygen	120 days
White blood cells	produces antibodies to fight infection	days to years
Platelets	blood clotting	8 days

Disorders

See also: hematologic diseases

A decrease in number of blood cells is called cytopenia. An increase, on the other hand, is called polycythemia.

External links

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

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