The mechanism that relays information about tissue oxygen levels to erythropoietin-producing sites is located in theA. BrainB. Kidney C. Liver D. Spleen
The correct answer is B
The correct answer is B. Kidney.
The mechanism that relays information about tissue oxygen levels to erythropoietin-producing sites is primarily located in the kidneys. The kidneys play a crucial role in maintaining overall oxygen balance in the body by producing a hormone called erythropoietin (EPO).
Erythropoietin is responsible for stimulating the production of red blood cells in the bone marrow. When the oxygen levels in the tissues are low or when there is decreased oxygen delivery to the kidneys, the cells in the kidneys called peritubular interstitial cells detect this decrease and initiate the production and release of erythropoietin.
The release of erythropoietin into the bloodstream then travels to the bone marrow, where it binds to specific receptors on the surface of red cell precursors. This binding stimulates the differentiation and proliferation of these precursors into mature red blood cells called erythrocytes.
Therefore, the kidneys act as oxygen sensors in the body, relaying information about tissue oxygen levels to erythropoietin-producing sites, such as the bone marrow, to ensure adequate oxygen supply to the tissues.
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