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← Human Body & HealthFollowing a spinal injury reducing blood pressure, which outcome compromises neuronal function?
A)Decreased cerebral perfusion pressure (CPP)✓
B)Increased sympathetic nerve activity
C)Elevated cerebrospinal fluid (CSF) pressure
D)Reduced vagal nerve stimulation
💡 Explanation
Reduced blood pressure implies decreased cerebral perfusion pressure reduces oxygen delivery. This impairs neuronal function because the resting membrane potential maintenance, relying on the Na+/K+ pump's activity, ceases. Therefore, CPP reduction causes dysfunction; rather than sympathetic activity which would initially increase blood pressure.
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