NEET Biology question

Which of the following statements is correct regarding hypothalamic control of pituitary function?

(A)All the hypothalamic hormones are synthesized and secreted by neuronsCorrect
(B)Blood flows from the anterior pituitary to the hypothalamus in the portal vessels
(C)The hypothalamic releasing hormones reach the general circulation in significant amounts
(D)Loss of dopaminergic neurons in the hypothalamus is likely to lead to a fall in the secretion of prolactin

Answer: (A)

Solution

Blood in the hypophyseal portal system actually flows from the hypothalamus to the anterior pituitary, not the reverse, ruling out (b); releasing hormones act locally in extremely small quantities and are not detectable in the general circulation, ruling out (c); since dopamine

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Question ID VK-128674