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 sensory modalities is carried to the brain
by the somatic nervous system?
A. Baroreceptor signals for blood pressure
B. Visual signals from the retina
C. Auditory (hearing) signals
D. Gastrointestinal stretch signals
Correct Answer: C
Rationale:
Option C is correct because the somatic nervous system carries
information from most conscious senses (except vision) to the
brain, including sound (hearing). The Cleveland Clinic notes that
sound is transmitted via the somatic division. Option A (blood
pressure) is controlled by the autonomic system (baroreceptors
→ vagus nerve), not the somatic system. Option B (vision) is
processed by the optic nerve, which is technically part of the
central nervous system (not somatic) and not conveyed by
somatic afferents. Option D (gastrointestinal stretch) is also
autonomic in nature (visceral sensation), so it is not part of the
somatic sensory system.
Question 2
, Which statement best describes the primary role of glial cells in
the peripheral nervous system?
A. Transmitting electrical signals between neurons
B. Insulating neuronal axons with myelin sheaths
C. Providing support and nutrition to neurons
D. Acting as second-order neurons in sensory pathways
Correct Answer: C
Rationale:
Option C is correct because glial cells are support cells that help
nourish and maintain neurons, but they do not transmit nerve
signals themselves. The Cleveland Clinic explains that glial cells
“are support cells in your nervous system” and “help the
neurons”. Option A is incorrect because transmitting signals is
the job of neurons, not glia. Option B is only partially true:
some glial cells (Schwann cells, oligodendrocytes) form myelin,
but glia as a whole are defined by support functions. Option D is
incorrect because glia are not neurons and do not serve as relay
or second-order neurons in sensory pathways.
Question 3
A lesion affecting the ventral root of a spinal nerve would
directly disrupt which type of fibers?
A. Somatosensory afferent fibers
B. Visceral (autonomic) afferent fibers
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 sensory modalities is carried to the brain
by the somatic nervous system?
A. Baroreceptor signals for blood pressure
B. Visual signals from the retina
C. Auditory (hearing) signals
D. Gastrointestinal stretch signals
Correct Answer: C
Rationale:
Option C is correct because the somatic nervous system carries
information from most conscious senses (except vision) to the
brain, including sound (hearing). The Cleveland Clinic notes that
sound is transmitted via the somatic division. Option A (blood
pressure) is controlled by the autonomic system (baroreceptors
→ vagus nerve), not the somatic system. Option B (vision) is
processed by the optic nerve, which is technically part of the
central nervous system (not somatic) and not conveyed by
somatic afferents. Option D (gastrointestinal stretch) is also
autonomic in nature (visceral sensation), so it is not part of the
somatic sensory system.
Question 2
, Which statement best describes the primary role of glial cells in
the peripheral nervous system?
A. Transmitting electrical signals between neurons
B. Insulating neuronal axons with myelin sheaths
C. Providing support and nutrition to neurons
D. Acting as second-order neurons in sensory pathways
Correct Answer: C
Rationale:
Option C is correct because glial cells are support cells that help
nourish and maintain neurons, but they do not transmit nerve
signals themselves. The Cleveland Clinic explains that glial cells
“are support cells in your nervous system” and “help the
neurons”. Option A is incorrect because transmitting signals is
the job of neurons, not glia. Option B is only partially true:
some glial cells (Schwann cells, oligodendrocytes) form myelin,
but glia as a whole are defined by support functions. Option D is
incorrect because glia are not neurons and do not serve as relay
or second-order neurons in sensory pathways.
Question 3
A lesion affecting the ventral root of a spinal nerve would
directly disrupt which type of fibers?
A. Somatosensory afferent fibers
B. Visceral (autonomic) afferent fibers
