ESTUDY
MSN 671 FINAL EXAM UPDATED EXAM WITH
MOST TESTED QUESTIONS AND ANSWERS |
GRADED A+ | ASSURED SUCCESS WITH DETAILED
RATIONALES
1. **How do most neurons in the human CNS communicate at synapses?**
A. Electrically
B. Chemically
C. Magnetically
D. Mechanically
**→ B. Chemically**
2. **What is it called when neurotransmitters spread without a synapse?**
A. Direct transmission
B. Electric conduction
C. Volume neurotransmission
D. Passive diffusion
**→ C. Volume neurotransmission**
3. **Which neurotransmitter works mainly as a retrograde signal (goes backward)?**
A. Dopamine
B. Nitric oxide
C. Serotonin
D. Acetylcholine
,ESTUDY
**→ B. Nitric oxide**
4. **Which of these is an example of volume transmission?**
A. Serotonin in the spinal cord
B. Acetylcholine in the brainstem
C. Dopamine in the prefrontal cortex
D. GABA in the cerebellum
**→ C. Dopamine in the prefrontal cortex**
5. **Where is the second messenger made during G-protein signaling?**
A. In the synapse
B. Outside the neuron
C. In the bloodstream
D. Inside the neuron
**→ D. Inside the neuron**
6. **What pump powers the transport of monoamines like dopamine?**
A. Potassium pump
B. Sodium pump
C. Calcium pump
D. Chloride pump
**→ B. Sodium pump**
7. **What does a partial agonist do to neurotransmission?**
A. Blocks it entirely
, ESTUDY
B. Always increases it
C. Acts based on existing levels
D. Converts it to electric signals
**→ C. Acts based on existing levels**
8. **What do inverse agonists do at G-protein receptors?**
A. Activate the receptor
B. Block the receptor without changing it
C. Stabilize the inactive form
D. Cause ion flow
**→ C. Stabilize the inactive form**
9. **What blocks all types of agonist activity?**
A. Partial agonists
B. Inverse agonists
C. Antagonists
D. Enzymes
**→ C. Antagonists**
10. **What opens ligand-gated ion channels?**
A. Voltage
B. Hormones
C. Neurotransmitters
D. Water
**→ C. Neurotransmitters**
MSN 671 FINAL EXAM UPDATED EXAM WITH
MOST TESTED QUESTIONS AND ANSWERS |
GRADED A+ | ASSURED SUCCESS WITH DETAILED
RATIONALES
1. **How do most neurons in the human CNS communicate at synapses?**
A. Electrically
B. Chemically
C. Magnetically
D. Mechanically
**→ B. Chemically**
2. **What is it called when neurotransmitters spread without a synapse?**
A. Direct transmission
B. Electric conduction
C. Volume neurotransmission
D. Passive diffusion
**→ C. Volume neurotransmission**
3. **Which neurotransmitter works mainly as a retrograde signal (goes backward)?**
A. Dopamine
B. Nitric oxide
C. Serotonin
D. Acetylcholine
,ESTUDY
**→ B. Nitric oxide**
4. **Which of these is an example of volume transmission?**
A. Serotonin in the spinal cord
B. Acetylcholine in the brainstem
C. Dopamine in the prefrontal cortex
D. GABA in the cerebellum
**→ C. Dopamine in the prefrontal cortex**
5. **Where is the second messenger made during G-protein signaling?**
A. In the synapse
B. Outside the neuron
C. In the bloodstream
D. Inside the neuron
**→ D. Inside the neuron**
6. **What pump powers the transport of monoamines like dopamine?**
A. Potassium pump
B. Sodium pump
C. Calcium pump
D. Chloride pump
**→ B. Sodium pump**
7. **What does a partial agonist do to neurotransmission?**
A. Blocks it entirely
, ESTUDY
B. Always increases it
C. Acts based on existing levels
D. Converts it to electric signals
**→ C. Acts based on existing levels**
8. **What do inverse agonists do at G-protein receptors?**
A. Activate the receptor
B. Block the receptor without changing it
C. Stabilize the inactive form
D. Cause ion flow
**→ C. Stabilize the inactive form**
9. **What blocks all types of agonist activity?**
A. Partial agonists
B. Inverse agonists
C. Antagonists
D. Enzymes
**→ C. Antagonists**
10. **What opens ligand-gated ion channels?**
A. Voltage
B. Hormones
C. Neurotransmitters
D. Water
**→ C. Neurotransmitters**
