BIO NMDCAT Neurons

nmdcat.online July 7, 2026

During resting membrane potential maintenance, the neural membrane is relatively impermeable to

A. Potassium ions

B. Sodium ions

✓

C. Chloride ions

D. Small uncharged molecules

📝 Explanation

At rest, sodium leak channels are very rare compared to abundant potassium leak channels, making the resting membrane highly impermeable to Na+ and highly permeable to K+.

📖 Additional Information

Potassium ions
Sodium ions
Chloride ions
Small uncharged molecules

At rest, sodium leak channels are very rare compared to abundant potassium leak channels, making the resting membrane highly impermeable to Na+ and highly permeable to K+.

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