Erythropoetin in fetus is secreted by?: (A) Liver, (B) Marrow, (C) Spleen, (D) Kidney
Answer is A. Sources of erythropoietin: Fetus: Liver Adult: Interstitial cells in peritubular capillary bed of kidneys (85%). Perivenous hepatocytes in the liver (15%). Brain (protective effect against excitotoxic damage triggered by hypoxia).