Which hormone stimulates the production of erythrocytes (erythropoiesis) in response to hypoxia?
Answer and explanation
Correct answer: C. Erythropoietin
- Step 1: When renal tissue oxygen tension decreases, specialized peritubular interstitial cells of the kidney secrete erythropoietin. Step 2. EPO travels to the red bone marrow where it stimulates proerythroblast differentiation into mature red blood cells. Answer: Erythropoietin (EPO). Why not the others: Thrombopoietin stimulates platelet production; Insulin regulates carbohydrate metabolism; Thyroxine regulates basal metabolic rate.
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