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Human Body & Health

Which mechanism causes osmotic imbalances impairing neuronal function?

A)Cerebral cell volume regulation failure
B)Glomerular filtration rate stabilization
C)Blood-brain barrier nutrient transport
D)Hepatic urea cycle regulation

💡 Explanation

Cerebral cell volume regulation failure leads to edema when osmolality changes abruptly because cellular proteins cause osmotic retention, thereby disrupting neuronal function rather than homeostasis; therefore A, compared to other regulated renal/hepatic functions is correct.

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