NEET 2008 Biology question

In human adult females oxytocin

(1)Causes strong uterine contractions during parturitionCorrect
(2)Is secreted by anterior pituitary
(3)Stimulates growth of mammary glands
(4)Stimulates pituitary to secrete vasopressin

Answer: (1)

Solution

Oxytocin, stored and released from the posterior pituitary (neurohypophysis), acts on the smooth muscles of the uterus and causes strong contractions during childbirth (parturition); it also causes milk ejection. Hence

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Question ID VK-090102