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Blood transports oxygen and nutrients to body tissues and returns waste and carbon dioxide. Blood distributes nearly everything that is carried from one area in the body to another place within the body. For example, blood transports hormones from endocrine organs to their target organs and tissues. Blood helps maintain body temperature and normal pH levels in body tissues. The protective functions of blood include clot formation and the prevention of infection.
Update Date:
08/10/2008
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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Red blood cells, sickle cell |
Megaloblastic anemia - view of red blood cells |
Red blood cells, tear-drop shape |
Red blood cells, normal |
Red blood cells, elliptocytosis |
Red blood cells, spherocytosis |
Red blood cells, multiple sickle cells |
Basophil (close-up) |
Malaria, microscopic view of cellular parasites |
Malaria, photomicrograph of cellular parasites |
Red blood cells, sickle cells |
Red blood cells, sickle and pappenheimer |
Red blood cells, target cells |
Formed elements of blood |
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