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 central nervous
system (CNS)?
A. Cranial nerve
B. Dorsal root ganglion
C. Spinal nerve
D. Spinal cord
Correct Answer: D
Rationale:
The CNS is composed of the brain and spinal cord. The spinal
cord (D) is therefore a CNS structure. Cranial nerves (A), dorsal
root ganglia (B), and spinal nerves (C) are part of the peripheral
nervous system (PNS), not the CNS.
• A. A cranial nerve lies in the PNS, not the CNS.
• B. A dorsal root ganglion contains sensory neuron cell
bodies in the PNS.
• C. A spinal nerve is a PNS structure.
• D. (Correct) The spinal cord is a key CNS structure.
Question 2
Which division of the nervous system primarily controls
involuntary visceral functions such as heart rate and digestion?
A. Somatic nervous system
, B. Autonomic nervous system
C. Central nervous system
D. Peripheral nervous system
Correct Answer: B
Rationale:
The autonomic nervous system (ANS) is the subdivision of the
PNS that regulates involuntary visceral (organ) functions. It
operates below conscious control and includes sympathetic and
parasympathetic branches that manage heart rate, digestion,
glandular activity, etc..
• A. The somatic nervous system controls voluntary
movements of skeletal muscles, not involuntary organ
functions.
• B. (Correct) The autonomic nervous system controls
involuntary visceral functions.
• C. The central nervous system (brain and spinal cord)
processes information but is not a “division” that directly
controls specific bodily functions.
• D. The peripheral nervous system includes both the
somatic and autonomic divisions, but itself is not the
specific controller of involuntary organs.
Question 3
In neuroanatomy terminology, what is a bundle of axons