Info

Bone

Blood

Liver.

Figure

Life cycle of a red blood cell. (1) The small intestine absorbs essential nutrients. (2) Blood transports nutrients to red bone marrow. (3) In the marrow, red blood cells arise from division of less specialized cells. (4) Mature red blood cells are released into the bloodstream, where they circulate for about 120 days. (5) Macrophages destroy damaged red blood cells in the spleen and liver. (6) Hemoglobin liberated from red blood cells breaks down into heme and globin. (7) Iron from heme returns to red bone marrow and is reused. (8) Biliverdin and bilirubin are excreted in the bile.

Life cycle of a red blood cell. (1) The small intestine absorbs essential nutrients. (2) Blood transports nutrients to red bone marrow. (3) In the marrow, red blood cells arise from division of less specialized cells. (4) Mature red blood cells are released into the bloodstream, where they circulate for about 120 days. (5) Macrophages destroy damaged red blood cells in the spleen and liver. (6) Hemoglobin liberated from red blood cells breaks down into heme and globin. (7) Iron from heme returns to red bone marrow and is reused. (8) Biliverdin and bilirubin are excreted in the bile.

H Dietary Factors

Affecting

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