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. Cerebral cortex
B. Spinal cord
C. Spinal nerve
D. Brainstem
Correct Answer: C
Rationale: The PNS consists of nerves outside the brain and
spinal cord. Spinal nerves are bundles of peripheral nerve fibers
(sensory and motor) and belong to the PNS. The cerebral
cortex, spinal cord, and brainstem are all CNS structures. Option
A (cerebral cortex) is CNS because it is part of the brain. Option
B (spinal cord) is the main CNS pathway in the vertebral column.
Option D (brainstem) is also part of the CNS connecting brain
and cord. Therefore, only the spinal nerve (C) is correctly
identified as PNS.
Question 2
Which type of glial cell is responsible for forming myelin in the
peripheral nervous system?
A. Microglia
B. Oligodendrocyte
, C. Schwann cell
D. Astrocyte
Correct Answer: C
Rationale: In the PNS, Schwann cells wrap around axons and
produce myelin sheaths. Oligodendrocytes (B) produce myelin
in the CNS, not the PNS. Microglia (A) are immune cells in CNS,
and astrocytes (D) support neurons in CNS; neither forms
myelin. Only Schwann cells (C) serve this function outside the
brain and spinal cord.
Question 3
Which part of a neuron typically receives incoming signals from
other neurons?
A. Axon
B. Nucleus
C. Dendrite
D. Myelin sheath
Correct Answer: C
Rationale: Dendrites are the neuron’s receptor processes that
receive synaptic inputs from other neurons. The axon (A)
conducts signals away from the cell body, so it transmits rather
than receives. The nucleus (B) contains genetic material and
does not receive signals. The myelin sheath (D) insulates an
axon; it does not receive synaptic input. Thus, dendrites (C) are
correct since they receive incoming information.
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. Cerebral cortex
B. Spinal cord
C. Spinal nerve
D. Brainstem
Correct Answer: C
Rationale: The PNS consists of nerves outside the brain and
spinal cord. Spinal nerves are bundles of peripheral nerve fibers
(sensory and motor) and belong to the PNS. The cerebral
cortex, spinal cord, and brainstem are all CNS structures. Option
A (cerebral cortex) is CNS because it is part of the brain. Option
B (spinal cord) is the main CNS pathway in the vertebral column.
Option D (brainstem) is also part of the CNS connecting brain
and cord. Therefore, only the spinal nerve (C) is correctly
identified as PNS.
Question 2
Which type of glial cell is responsible for forming myelin in the
peripheral nervous system?
A. Microglia
B. Oligodendrocyte
, C. Schwann cell
D. Astrocyte
Correct Answer: C
Rationale: In the PNS, Schwann cells wrap around axons and
produce myelin sheaths. Oligodendrocytes (B) produce myelin
in the CNS, not the PNS. Microglia (A) are immune cells in CNS,
and astrocytes (D) support neurons in CNS; neither forms
myelin. Only Schwann cells (C) serve this function outside the
brain and spinal cord.
Question 3
Which part of a neuron typically receives incoming signals from
other neurons?
A. Axon
B. Nucleus
C. Dendrite
D. Myelin sheath
Correct Answer: C
Rationale: Dendrites are the neuron’s receptor processes that
receive synaptic inputs from other neurons. The axon (A)
conducts signals away from the cell body, so it transmits rather
than receives. The nucleus (B) contains genetic material and
does not receive signals. The myelin sheath (D) insulates an
axon; it does not receive synaptic input. Thus, dendrites (C) are
correct since they receive incoming information.
