Q. Which of the following statements is correct regarding hypothalamic control of pituitary function?
A) All the hypothalamic hormones are synthesized and secreted by neurons
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
Explanation
The hypothalamus regulates the function of the anterior pituitary by means of the hormones it secretes into the portal vessels of the hypothalamo- hypophyseal system. Blood flows from the hypothalamus to the anterior pituitary gland. The quantities of hormones secreted are very small and cannot be detected in the general circulation.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.