The following is not one of the three steps (processes) involved in urine formation - Erythropoietin production.
Erythropoietin
It is a hormone that has no role in urine production. The steps of urine production are:
- glomerular filtration - the filtration of blood, which is carried out by the glomerulus
- tubular reabsorption - The tubular epithelial cells in different segments of the nephron perform absorption (reabsorption) either by active or passive mechanisms
- tubular secretion - helps in the maintenance of an ionic and acid-base balance of body fluids.
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