1|Page
PSY 3309/PSY 3309 BEHAVIORAL
NEUROSCIENCE Final Exam Newest Exam
Preparation With Complete Questions And Correct
Answers With Rationales | Already Graded A+||Brand
New Version!!
.
1. The primary function of the nervous system is to:
A) Produce movement
B) Generate emotion
C) Process and transmit information
D) Synthesize proteins
Answer: C
Explanation: The nervous system fundamentally receives, processes,
and transmits information to coordinate physiology and behavior. While
movement and emotion are outputs, they depend on prior information
processing.
2. The basic structural and functional unit of the nervous system is the:
A) Glial cell
,2|Page
B) Neuron
C) Synapse
D) Axon
Answer: B
Explanation: The neuron is the specialized excitable cell responsible for
signaling. Glia support neurons, synapses are junctions, and axons are
neuronal processes.
3. The part of a neuron that typically receives signals from other
neurons is the:
A) Axon
B) Soma
C) Dendrite
D) Terminal button
Answer: C
Explanation: Dendrites possess receptors and postsynaptic densities
that capture neurotransmitters. The soma integrates inputs; the axon
conducts output.
4. The myelin sheath serves to:
A) Speed up neural transmission
,3|Page
B) Slow down neural transmission
C) Synthesize neurotransmitters
D) Store genetic material
Answer: A
Explanation: Myelin, formed by oligodendrocytes and Schwann cells,
insulates axons and increases conduction velocity via saltatory
conduction.
5. The gap between two neurons where communication occurs is the:
A) Node of Ranvier
B) Synaptic cleft
C) Axon hillock
D) Dendritic spine
Answer: B
Explanation: The synaptic cleft is the extracellular space separating
presynaptic and postsynaptic membranes, across which
neurotransmitters diffuse.
6. Which glial cell type is responsible for forming the blood-brain
barrier?
A) Astrocyte
, 4|Page
B) Oligodendrocyte
C) Microglia
D) Ependymal cell
Answer: A
Explanation: Astrocytic end-feet envelop capillaries and induce tight
junction formation, thus contributing to the blood-brain barrier's
selectivity.
7. The resting membrane potential of a typical neuron is approximately:
A) +30 mV
B) 0 mV
C) -70 mV
D) -90 mV
Answer: C
Explanation: The resting potential, near the equilibrium potential for
potassium, is about -70 mV due to differential ion permeability and the
Na+/K+ pump.
8. The sodium-potassium pump transports:
A) 3 Na+ out and 2 K+ in
B) 2 Na+ out and 3 K+ in
C) 3 Na+ in and 2 K+ out
PSY 3309/PSY 3309 BEHAVIORAL
NEUROSCIENCE Final Exam Newest Exam
Preparation With Complete Questions And Correct
Answers With Rationales | Already Graded A+||Brand
New Version!!
.
1. The primary function of the nervous system is to:
A) Produce movement
B) Generate emotion
C) Process and transmit information
D) Synthesize proteins
Answer: C
Explanation: The nervous system fundamentally receives, processes,
and transmits information to coordinate physiology and behavior. While
movement and emotion are outputs, they depend on prior information
processing.
2. The basic structural and functional unit of the nervous system is the:
A) Glial cell
,2|Page
B) Neuron
C) Synapse
D) Axon
Answer: B
Explanation: The neuron is the specialized excitable cell responsible for
signaling. Glia support neurons, synapses are junctions, and axons are
neuronal processes.
3. The part of a neuron that typically receives signals from other
neurons is the:
A) Axon
B) Soma
C) Dendrite
D) Terminal button
Answer: C
Explanation: Dendrites possess receptors and postsynaptic densities
that capture neurotransmitters. The soma integrates inputs; the axon
conducts output.
4. The myelin sheath serves to:
A) Speed up neural transmission
,3|Page
B) Slow down neural transmission
C) Synthesize neurotransmitters
D) Store genetic material
Answer: A
Explanation: Myelin, formed by oligodendrocytes and Schwann cells,
insulates axons and increases conduction velocity via saltatory
conduction.
5. The gap between two neurons where communication occurs is the:
A) Node of Ranvier
B) Synaptic cleft
C) Axon hillock
D) Dendritic spine
Answer: B
Explanation: The synaptic cleft is the extracellular space separating
presynaptic and postsynaptic membranes, across which
neurotransmitters diffuse.
6. Which glial cell type is responsible for forming the blood-brain
barrier?
A) Astrocyte
, 4|Page
B) Oligodendrocyte
C) Microglia
D) Ependymal cell
Answer: A
Explanation: Astrocytic end-feet envelop capillaries and induce tight
junction formation, thus contributing to the blood-brain barrier's
selectivity.
7. The resting membrane potential of a typical neuron is approximately:
A) +30 mV
B) 0 mV
C) -70 mV
D) -90 mV
Answer: C
Explanation: The resting potential, near the equilibrium potential for
potassium, is about -70 mV due to differential ion permeability and the
Na+/K+ pump.
8. The sodium-potassium pump transports:
A) 3 Na+ out and 2 K+ in
B) 2 Na+ out and 3 K+ in
C) 3 Na+ in and 2 K+ out
