MSN 671 Final 2025/2026 Exam
Questions and Correct Answers | New
Update
Communication between all human CNS neurons at the synapses is: - 🧠
ANSWER ✔✔Chemical
When neurotransmission occurs without a synapse, what is it called? - 🧠
ANSWER ✔✔Volume neurotransmission
Which is an example of a neurotransmitter produced specifically as a
retrograde neurotransmitter? - 🧠 ANSWER ✔✔Nitric oxide
Which is an example of a volume neurotransmission? - 🧠 ANSWER
✔✔Dopamine in the prefrontal cortex
In a G protein-linked signal transduction cascade, where is the second
messenger synthesized? - 🧠 ANSWER ✔✔Intracellularly
Which type of pump supplies the energy for the transport of monoamines? -
🧠 ANSWER ✔✔Sodium pump
1
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, A partial agonist has what effect on neurotransmission? - 🧠 ANSWER
✔✔Net agonism when neurotransmission is deficient, net antagonism when
neurotransmission is excessive
Which is true regarding inverse agonists? - 🧠 ANSWER ✔✔Their action is
thought to produce a conformational change in the G-protein-linked
receptor that stabilizes it in an inactive form, producing a reduction in signal
transduction
Which of the following block the actions of everything in the agonist
spectrum? - 🧠 ANSWER ✔✔Antagonists
What regulates the opening of ligand-gated ion channels? - 🧠 ANSWER
✔✔Neurotransmitters
What regulates the opening of voltage-gated ion channels? - 🧠 ANSWER
✔✔The charge across the membrane
What happens to an ion channel when both a neurotransmitter and positive
allosteric modulator bind to a receptor? - 🧠 ANSWER ✔✔The channel
opens much more frequently, allowing more ions into the cell
2
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions and Correct Answers | New
Update
Communication between all human CNS neurons at the synapses is: - 🧠
ANSWER ✔✔Chemical
When neurotransmission occurs without a synapse, what is it called? - 🧠
ANSWER ✔✔Volume neurotransmission
Which is an example of a neurotransmitter produced specifically as a
retrograde neurotransmitter? - 🧠 ANSWER ✔✔Nitric oxide
Which is an example of a volume neurotransmission? - 🧠 ANSWER
✔✔Dopamine in the prefrontal cortex
In a G protein-linked signal transduction cascade, where is the second
messenger synthesized? - 🧠 ANSWER ✔✔Intracellularly
Which type of pump supplies the energy for the transport of monoamines? -
🧠 ANSWER ✔✔Sodium pump
1
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, A partial agonist has what effect on neurotransmission? - 🧠 ANSWER
✔✔Net agonism when neurotransmission is deficient, net antagonism when
neurotransmission is excessive
Which is true regarding inverse agonists? - 🧠 ANSWER ✔✔Their action is
thought to produce a conformational change in the G-protein-linked
receptor that stabilizes it in an inactive form, producing a reduction in signal
transduction
Which of the following block the actions of everything in the agonist
spectrum? - 🧠 ANSWER ✔✔Antagonists
What regulates the opening of ligand-gated ion channels? - 🧠 ANSWER
✔✔Neurotransmitters
What regulates the opening of voltage-gated ion channels? - 🧠 ANSWER
✔✔The charge across the membrane
What happens to an ion channel when both a neurotransmitter and positive
allosteric modulator bind to a receptor? - 🧠 ANSWER ✔✔The channel
opens much more frequently, allowing more ions into the cell
2
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
