HardZoologyChemical Coordination & Integration
+4 / -1
If pituitary is surgically removed, blood level of sodium falls and that of potassium rises up due to:
A
Fact that LTH from pituitary is no longer available
B
Atrophy of adrenal medulla
C
Atrophy of adrenal cortex
D
Fact that oxytocin from pituitary is no longer available
Explanation
The removal of the pituitary stops ACTH production, leading to atrophy of the adrenal cortex. This reduces aldosterone secretion, which is responsible for Na+ reabsorption and K+ excretion.
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