Blood cell

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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.^[1]

References

External links

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

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .