Erythropoietin is/are produced by: (A) Juxtaglomerular cells, (B) Interstitial cells of the peritubular capillary bed of the kidneys, (C) Pars recta of PCT, (D) Macula densa
Answer is B. Ans. (b) Interstitial cells of the peritubular capillary bed of the kidneys(Ref. Ganong25th edp.701)Major source of erythropoietin is Interstitial cells of the peritubular capillary bed of the kidneys