What are P and Q in the given chart? | vedclass

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Question

(A) The hypothalamus regulates the pituitary gland through two distinct pathways:$1$. The anterior pituitary gland is regulated by releasing and inhib

Vedclass · Accepted Answer

$P -$ Hypophyseal portal vein,$Q -$ Axons of neurosecretory cells

Vedclass · Answer

(A) The hypothalamus regulates the pituitary gland through two distinct pathways:$1$. The anterior pituitary gland is regulated by releasing and inhibiting hormones that travel from the hypothalamus to the anterior pituitary via the hypophyseal portal system (represented by $P$).$2$. The posterior pituitary gland is under the direct neural control of the hypothalamus. Hormones are synthesized in the hypothalamic neurons and transported down their axons (represented by $Q$) to the posterior pituitary for storage and release.Therefore,$P$ represents the hypophyseal portal vein and $Q$ represents the axons of neurosecretory cells.

What are $P$ and $Q$ in the given chart?

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