Of those listed, which event occurs first following a depolarizing stimulus appl

Question

Of those listed, which event occurs first following a depolarizing stimulus applied to the presynaptic membrane of an axon terminal?

d. Synaptic vesicles fuse with the membrane.

2. After eating a large meal, which branch of your nervous system is activated?

a. Voltage-gated calcium channels in the membrane open. b.Ligand-gated channels open, allowing neurotransmitters to enter the synaptic cleft. c. The postsynaptic cell produces an action potential.

d. Synaptic vesicles fuse with the membrane.

2. After eating a large meal, which branch of your nervous system is activated?

a. enteric b. sensory c. somatic (motor) d. sympathetic

Explanation / Answer

a. voltage gated calcium channels in the membrane open.

When the action potential reaches the terminal, it activates voltage-dependent calcium channels, allowing calcium ions to flow into theterminal. Neurotransmitters are later released into the synaptic cleft.

2. enteric nervous system (increase secretion ).

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.