Question:
Various hormones secreted by hypothalamus reach the pituitary gland through -
Various hormones secreted by hypothalamus reach the pituitary gland through -
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Two capillary beds are linked by portal veins.
Updated On: Nov 12, 2026
- hypophyseal portal system
- hepatic portal vein
- superior vena cava
- inferior vena cava
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
Neurosecretory cells of the hypothalamus produce releasing and inhibiting hormones.
Step 2: Route taken
These hormones enter a capillary bed in the median eminence and are carried by portal veins to a second capillary bed in the anterior pituitary. This link is the hypophyseal portal system.
Step 3: Why the other options fail
The hepatic portal vein serves the liver, and the venae cavae return blood to the heart. Neither links the hypothalamus with the pituitary.
Final Answer:
Hypothalamic hormones reach the pituitary through the hypophyseal portal system. \[ \boxed{\text{(A) }\text{hypophyseal portal system}} \]
Neurosecretory cells of the hypothalamus produce releasing and inhibiting hormones.
Step 2: Route taken
These hormones enter a capillary bed in the median eminence and are carried by portal veins to a second capillary bed in the anterior pituitary. This link is the hypophyseal portal system.
Step 3: Why the other options fail
The hepatic portal vein serves the liver, and the venae cavae return blood to the heart. Neither links the hypothalamus with the pituitary.
Final Answer:
Hypothalamic hormones reach the pituitary through the hypophyseal portal system. \[ \boxed{\text{(A) }\text{hypophyseal portal system}} \]
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