Correct option:(B) Erythropoietin and calcitriol
Solution:
- Human kidneys produces two types of hormones: Epo (erythropoietin) and calcitriol.
- Erythropoietin hormone increases the production of red blood cells.
- Calcitriol is the active form of vitamin D.
- Calcitriol hormone helps in absorption of calcium and phosphate from food.
- Calcitonin is produced by the C-cells of thyroid gland.
- Helps in regulation of calcium and phosphate levels in blood.
- Relaxin is produced by ovary and placenta.
- Helps during childbirth.