Erythropoietin is produced in which organ?

Erythropoietin is produced in which organ?

• A. Kidney
• B. Bone marrow
• C. Liver
• D. Pituitary gland

Answer: (A)

The organ that produces erythropoietin is the kidney. When oxygen levels fall, specialized kidney cells release erythropoietin into the bloodstream. This hormone then signals the bone marrow to ramp up production of red blood cells, helping improve the oxygen-carrying capacity of the blood. In fetal life, the liver contributes more to erythropoietin production, but after birth the kidneys are the primary source. The bone marrow is where the red cells are produced, not where EPO is made, and the pituitary gland does not produce EPO.

The organ that produces erythropoietin is the kidney. When oxygen levels fall, specialized kidney cells release erythropoietin into the bloodstream. This hormone then signals the bone marrow to ramp up production of red blood cells, helping improve the oxygen-carrying capacity of the blood. In fetal life, the liver contributes more to erythropoietin production, but after birth the kidneys are the primary source. The bone marrow is where the red cells are produced, not where EPO is made, and the pituitary gland does not produce EPO.