Anatomy & Physiology for Speech, Language,
and Hearing
7th Edition
• Author(s)J. Anthony Seikel, David G.
Drumright, Daniel J. Hudock
TEST BANK
Chapter 11. Neuroanatomy
Overview
Sense, Sensor, and Stimulation
Divisions of the Nervous System
Central Nervous System and Peripheral Nervous System
Autonomic and Somatic Nervous Systems
Development Divisions
Anatomy of the Central Nervous System and Peripheral Nervous System
Neurons……..
,
,Question 1
Which of the following structures is part of the peripheral
nervous system (PNS) rather than the central nervous system
(CNS)?
A. Spinal cord
B. Brainstem
C. Vagus nerve (CN X)
D. Cerebellum
Correct Answer: C
Rationale: Cranial nerve X (the vagus nerve) is part of the PNS
because it lies outside the brain and spinal cord and carries
signals to and from visceral organs. The spinal cord (Option A),
brainstem (Option B), and cerebellum (Option D) are all
components of the CNS. The spinal cord and brainstem
(medulla, pons, midbrain) are housed within the central
nervous system, and the cerebellum is a CNS structure under
the occipital lobes. Only the vagus nerve is a peripheral nerve,
making Option C correct. Options A, B, and D are incorrect
because they are central nervous system structures.
Question 2
Which type of glial cell is responsible for producing the myelin
sheath around axons in the peripheral nervous system (PNS)?
, A. Oligodendrocytes
B. Astrocytes
C. Schwann cells
D. Microglia
Correct Answer: C
Rationale: In the peripheral nervous system, Schwann cells
(Option C) are the glial cells that wrap around axons to form
myelin sheaths. Oligodendrocytes (Option A) produce myelin in
the CNS, not the PNS. Astrocytes (Option B) provide metabolic
support and maintain the blood-brain barrier in the CNS, and
microglia (Option D) are CNS immune cells. Thus, Options A, B,
and D are incorrect for PNS myelination. Only Schwann cells
correctly correspond to PNS myelin.
Question 3
Which cranial nerve carries auditory (hearing) information from
the cochlea to the brain?
A. Trigeminal nerve (CN V)
B. Facial nerve (CN VII)
C. Vestibulocochlear nerve (CN VIII)
D. Glossopharyngeal nerve (CN IX)
Correct Answer: C
Rationale: The vestibulocochlear nerve (CN VIII, Option C) is the
cranial nerve responsible for carrying sound and balance
and Hearing
7th Edition
• Author(s)J. Anthony Seikel, David G.
Drumright, Daniel J. Hudock
TEST BANK
Chapter 11. Neuroanatomy
Overview
Sense, Sensor, and Stimulation
Divisions of the Nervous System
Central Nervous System and Peripheral Nervous System
Autonomic and Somatic Nervous Systems
Development Divisions
Anatomy of the Central Nervous System and Peripheral Nervous System
Neurons……..
,
,Question 1
Which of the following structures is part of the peripheral
nervous system (PNS) rather than the central nervous system
(CNS)?
A. Spinal cord
B. Brainstem
C. Vagus nerve (CN X)
D. Cerebellum
Correct Answer: C
Rationale: Cranial nerve X (the vagus nerve) is part of the PNS
because it lies outside the brain and spinal cord and carries
signals to and from visceral organs. The spinal cord (Option A),
brainstem (Option B), and cerebellum (Option D) are all
components of the CNS. The spinal cord and brainstem
(medulla, pons, midbrain) are housed within the central
nervous system, and the cerebellum is a CNS structure under
the occipital lobes. Only the vagus nerve is a peripheral nerve,
making Option C correct. Options A, B, and D are incorrect
because they are central nervous system structures.
Question 2
Which type of glial cell is responsible for producing the myelin
sheath around axons in the peripheral nervous system (PNS)?
, A. Oligodendrocytes
B. Astrocytes
C. Schwann cells
D. Microglia
Correct Answer: C
Rationale: In the peripheral nervous system, Schwann cells
(Option C) are the glial cells that wrap around axons to form
myelin sheaths. Oligodendrocytes (Option A) produce myelin in
the CNS, not the PNS. Astrocytes (Option B) provide metabolic
support and maintain the blood-brain barrier in the CNS, and
microglia (Option D) are CNS immune cells. Thus, Options A, B,
and D are incorrect for PNS myelination. Only Schwann cells
correctly correspond to PNS myelin.
Question 3
Which cranial nerve carries auditory (hearing) information from
the cochlea to the brain?
A. Trigeminal nerve (CN V)
B. Facial nerve (CN VII)
C. Vestibulocochlear nerve (CN VIII)
D. Glossopharyngeal nerve (CN IX)
Correct Answer: C
Rationale: The vestibulocochlear nerve (CN VIII, Option C) is the
cranial nerve responsible for carrying sound and balance
