MSN 671 Final Exam UPDATED ACTUAL QUESTIONS AND
CORRECT Answers
What is classic neurotransmission? Communication between neurons involving action potentials, calcium influx,
vesicle fusion, neurotransmitter release, and receptor binding.
What triggers vesicle fusion in neurotransmission? Calcium influx through voltage-gated calcium channels.
How is the signal terminated in neurotransmission? By reuptake transporters, enzymatic degradation, and diffusion.
What is the function of ligand-gated ion channels? They open when a neurotransmitter binds.
What is the role of voltage-sensitive ion channels? They open due to membrane depolarization.
What is the function of sodium-charged ion channels? They allow sodium influx, leading to depolarization.
What neurotransmitter is associated with focus and Norepinephrine.
energy?
What role does acetylcholine play in the body? It is involved in memory, muscle contraction, and the peripheral nervous system.
What is melatonin's role in the body? It regulates circadian rhythms and sleep-wake cycles.
What is the effect of low serotonin levels? It is associated with depression and impulsivity.
What causes tardive dyskinesia? Long-term D2 receptor blockade in the nigrostriatal pathway.
CORRECT Answers
What is classic neurotransmission? Communication between neurons involving action potentials, calcium influx,
vesicle fusion, neurotransmitter release, and receptor binding.
What triggers vesicle fusion in neurotransmission? Calcium influx through voltage-gated calcium channels.
How is the signal terminated in neurotransmission? By reuptake transporters, enzymatic degradation, and diffusion.
What is the function of ligand-gated ion channels? They open when a neurotransmitter binds.
What is the role of voltage-sensitive ion channels? They open due to membrane depolarization.
What is the function of sodium-charged ion channels? They allow sodium influx, leading to depolarization.
What neurotransmitter is associated with focus and Norepinephrine.
energy?
What role does acetylcholine play in the body? It is involved in memory, muscle contraction, and the peripheral nervous system.
What is melatonin's role in the body? It regulates circadian rhythms and sleep-wake cycles.
What is the effect of low serotonin levels? It is associated with depression and impulsivity.
What causes tardive dyskinesia? Long-term D2 receptor blockade in the nigrostriatal pathway.
