Which hormone stimulates production of red blood cells in the bone marrow?

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Multiple Choice

Which hormone stimulates production of red blood cells in the bone marrow?

Explanation:
Erythropoietin is the hormone that drives the production of red blood cells. It is mainly made by kidney cells in response to low blood oxygen (hypoxia). Erythropoietin travels to the bone marrow and acts on erythroid progenitors, promoting their survival, proliferation, and maturation into red blood cells. This boosts the circulating reticulocyte count and increases the body's capacity to carry oxygen. Other substances have different roles. Thrombopoietin mainly stimulates platelet production. Erythroferrone, produced by developing erythroblasts, helps regulate iron availability by suppressing hepcidin. Interleukin-3 supports growth of several hematopoietic lineages, including some erythroid precursors, but erythropoietin is the principal regulator of red blood cell production.

Erythropoietin is the hormone that drives the production of red blood cells. It is mainly made by kidney cells in response to low blood oxygen (hypoxia). Erythropoietin travels to the bone marrow and acts on erythroid progenitors, promoting their survival, proliferation, and maturation into red blood cells. This boosts the circulating reticulocyte count and increases the body's capacity to carry oxygen.

Other substances have different roles. Thrombopoietin mainly stimulates platelet production. Erythroferrone, produced by developing erythroblasts, helps regulate iron availability by suppressing hepcidin. Interleukin-3 supports growth of several hematopoietic lineages, including some erythroid precursors, but erythropoietin is the principal regulator of red blood cell production.

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