10 Questions
What causes synaptic vesicles to fuse with the axonal membrane at the neuromuscular junction?
Entry of Ca2+ into the axon terminal
What prevents continued muscle fiber contraction at the neuromuscular junction?
Destruction of acetylcholine by acetylcholinesterase
What initiates electrical changes in the sarcolemma at the neuromuscular junction?
Binding of ACh to its receptors
What diffuses across the synaptic cleft to ACh receptors on the junction folds of the sarcolemma?
Acetylcholine (ACh)
What causes synaptic vesicles to release acetylcholine (ACh) into the synaptic cleft?
Fusion with the axonal membrane
What allows Ca2+ to enter the axon terminal at the neuromuscular junction?
Voltage-regulated calcium channels
What enzyme is responsible for the destruction of acetylcholine at the neuromuscular junction?
Acetylcholinesterase
What initiates electrical changes in the sarcolemma at the neuromuscular junction?
Binding of acetylcholine to its receptors
What diffuses across the synaptic cleft to ACh receptors on the junction folds of the sarcolemma at the neuromuscular junction?
Acetylcholine
What causes synaptic vesicles to fuse with the axonal membrane at the neuromuscular junction?
Ca2+ inside the axon terminal
Test your knowledge of the neuromuscular junction with this quiz. Explore topics such as voltage-regulated calcium channels, synaptic vesicles, acetylcholine, and ACh receptors. Strengthen your understanding of the intricate processes involved in nerve signal transmission at the neuromuscular junction.
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