MICROANATOMY

Detailed explanation-1: -Erythropoietin (EPO) is a glycoprotein hormone, naturally produced by the peritubular cells of the kidney, that stimulates red blood cell production.

Detailed explanation-2: -Artificially increasing your erythropoietin levels produces more haemoglobin and red blood cells and therefore improves the amount of oxygen that can be delivered to tissues, particularly muscles.

Detailed explanation-3: -The critmeter is found at the tip of the juxtamedullary region of the cortical labyrinth in the kidney, where erythropoietin is made physiologically.

Detailed explanation-4: -Erythropoietin is produced by interstitial fibroblasts in the kidney in close association with the peritubular capillary and proximal convoluted tubule. It is also produced in perisinusoidal cells in the liver. Liver production predominates in the fetal and perinatal period; renal production predominates in adulthood.