Figure 11- 2 The Nerve Action Potential
Use Figure 11- 2 to answer the following questions:
-The ion that triggers the release of acetylcholine into the synaptic cleft is
A) chloride.
B) potassium.
C) magnesium.
D) calcium.
E) sodium.

Question

Figure 11- 2 The Nerve Action Potential
Use Figure 11- 2 to answer the following questions:
-The ion that triggers the release of acetylcholine into the synaptic cleft is
A) chloride. 
B) potassium. 
C) magnesium. 
D) calcium. 
E) sodium.

Quizplus · Accepted Answer

Calcium ions trigger the release of acetylcholine by entering the presynaptic neuron and causing synaptic vesicles to fuse with the membrane, releasing the neurotransmitter into the synaptic cleft.

Figure 11- 2 the Nerve Action Potential