A) prolactin
B) calcitonin
C) adrenocorticotropin
D) oxytocin
Correct Answer: B
Solution :
Calcitonin in vertebrates, lowers the concentration of calcium (and phosphate) in the body by supressing the release of calcium from bone and promoting excretion of calcium and phosphate by the kidneys. Main function of prolactin in mammals is to activate growth of breasts during pregnancy and secretion of milk by mammary glands after child birth. Adrenocorticotropic hormone is secreted by cortical cells of anterior pituitary. Hyposecretion of ACTH leads to rheumatic arthritis. Oxytocin stimulates contraction of uterine muscles, including labour pain for child birth.
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