BIOD322 NEUROSCIENCE
Module 1
LATEST FINAL TEST REVIEW
Q&S
©2024/2025
,1. Which structure is responsible for the production of
cerebrospinal fluid (CSF)?
A. Choroid plexus
B. Arachnoid villi
C. Pia mater
D. Dura mater
Correct Answer: A. Choroid plexus
Rationale: The choroid plexus is a network of cells that line the
ventricles of the brain and produce cerebrospinal fluid (CSF).
2. The blood-brain barrier (BBB) is selectively permeable due to
the presence of:
A. Astrocyte end-feet
B. Tight junctions between endothelial cells
C. Pericytes
D. All of the above
Correct Answer: D. All of the above
Rationale: The BBB's selective permeability is due to astrocyte
end-feet that surround capillaries, tight junctions between
endothelial cells that prevent passage of substances, and pericytes
that regulate blood flow.
©2024/2025
,3. Which of the following neurotransmitters is primarily
excitatory in the central nervous system?
A. GABA
B. Dopamine
C. Glutamate
D. Serotonin
Correct Answer: C. Glutamate
Rationale: Glutamate is the main excitatory neurotransmitter in
the CNS, playing a key role in neural activation and synaptic
plasticity.
4. The autonomic nervous system does NOT directly control:
A. Heart rate
B. Skeletal muscle contraction
C. Digestive secretion
D. Pupil dilation
Correct Answer: B. Skeletal muscle contraction
Rationale: The autonomic nervous system regulates involuntary
body functions, whereas skeletal muscle contraction is controlled
by the somatic nervous system.
©2024/2025
, 5. Which area of the brain is responsible for regulating
homeostasis and endocrine function?
A. Cerebellum
B. Hypothalamus
C. Thalamus
D. Medulla oblongata
Correct Answer: B. Hypothalamus
Rationale: The hypothalamus is a crucial brain region for
maintaining homeostasis and controlling the endocrine system via
the pituitary gland.
6. The resting membrane potential of a neuron is closest to the
equilibrium potential of which ion?
A. Sodium (Na+)
B. Potassium (K+)
C. Calcium (Ca2+)
D. Chloride (Cl-)
Correct Answer: B. Potassium (K+)
Rationale: The resting membrane potential is primarily
determined by the concentration gradient of potassium, which is
why it is closest to potassium's equilibrium potential.
©2024/2025
Module 1
LATEST FINAL TEST REVIEW
Q&S
©2024/2025
,1. Which structure is responsible for the production of
cerebrospinal fluid (CSF)?
A. Choroid plexus
B. Arachnoid villi
C. Pia mater
D. Dura mater
Correct Answer: A. Choroid plexus
Rationale: The choroid plexus is a network of cells that line the
ventricles of the brain and produce cerebrospinal fluid (CSF).
2. The blood-brain barrier (BBB) is selectively permeable due to
the presence of:
A. Astrocyte end-feet
B. Tight junctions between endothelial cells
C. Pericytes
D. All of the above
Correct Answer: D. All of the above
Rationale: The BBB's selective permeability is due to astrocyte
end-feet that surround capillaries, tight junctions between
endothelial cells that prevent passage of substances, and pericytes
that regulate blood flow.
©2024/2025
,3. Which of the following neurotransmitters is primarily
excitatory in the central nervous system?
A. GABA
B. Dopamine
C. Glutamate
D. Serotonin
Correct Answer: C. Glutamate
Rationale: Glutamate is the main excitatory neurotransmitter in
the CNS, playing a key role in neural activation and synaptic
plasticity.
4. The autonomic nervous system does NOT directly control:
A. Heart rate
B. Skeletal muscle contraction
C. Digestive secretion
D. Pupil dilation
Correct Answer: B. Skeletal muscle contraction
Rationale: The autonomic nervous system regulates involuntary
body functions, whereas skeletal muscle contraction is controlled
by the somatic nervous system.
©2024/2025
, 5. Which area of the brain is responsible for regulating
homeostasis and endocrine function?
A. Cerebellum
B. Hypothalamus
C. Thalamus
D. Medulla oblongata
Correct Answer: B. Hypothalamus
Rationale: The hypothalamus is a crucial brain region for
maintaining homeostasis and controlling the endocrine system via
the pituitary gland.
6. The resting membrane potential of a neuron is closest to the
equilibrium potential of which ion?
A. Sodium (Na+)
B. Potassium (K+)
C. Calcium (Ca2+)
D. Chloride (Cl-)
Correct Answer: B. Potassium (K+)
Rationale: The resting membrane potential is primarily
determined by the concentration gradient of potassium, which is
why it is closest to potassium's equilibrium potential.
©2024/2025
