Why does hypertonic dehydration cause neurological dysfunction, rather than muscle weakness alone?

A)Increased glycolysis fuels neuron activity

B)Neurons actively pump chloride ions

C)Astrocytes buffer extracellular potassium

D)Brain cells undergo osmotic shrinkage✓

💡 Explanation

Hypertonic dehydration increases extracellular osmolarity, causing water to move out of brain cells via osmosis, therefore leading to cellular shrinkage and neurological dysfunction, rather than primarily affecting muscles because the brain's sensitivity to osmotic changes is higher.

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Why does hypertonic dehydration cause neurological dysfunction, rather than muscle weakness alone?

💡 Explanation

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