Which of the following does NOT contribute to the built in "safety factor" at the neuromuscular junction, whereby an action potential in the motor neuron almost always causes an AP in the muscle fiber High concentration of nicotinic acetylcholine receptors at the crests (top) of the postsynaptic folds High concentration of voltage-gated sodium channels in the troughs (bottom) of the postsynaptic folds OPrecise alignment of presynaptic release zones opposite the crests of the postsynaptic folds High concention of acetylcholinesterase in the synaptic cleft
Which of the following does NOT contribute to the built in "safety factor" at the neuromuscular junction, whereby an action potential in the motor neuron almost always causes an AP in the muscle fiber High concentration of nicotinic acetylcholine receptors at the crests (top) of the postsynaptic folds High concentration of voltage-gated sodium channels in the troughs (bottom) of the postsynaptic folds OPrecise alignment of presynaptic release zones opposite the crests of the postsynaptic folds High concention of acetylcholinesterase in the synaptic cleft
Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Lauralee Sherwood
Chapter7: The Peripheral Nervous System: Efferent Division
Section: Chapter Questions
Problem 4TAHL
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