If a muscle cell expressed muscarinic ACh channels,which are only permeable to Na⁺ instead of nicotinic ACh channels,which are permeable to both Na⁺ and K⁺,which portion of a muscle cell would be inhibited?

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Quizplus · Accepted Answer

Muscarinic ACh channels that are only permeable to Na+ would still allow for depolarization of the muscle cell, similar to nicotinic ACh channels that are permeable to both Na+ and K+. Therefore, none of the processes listed would be inhibited solely based on the specificity of the ion channel for Na+ over both Na+ and K+.

If a Muscle Cell Expressed Muscarinic ACh Channels,which Are Only