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 best describes a sensory sensor in
neuroanatomy?
A. A specialized nerve cell that detects and responds to specific
stimuli
B. A glial cell that supports neural activity
C. A brain region that integrates sensory inputs
D. A neurotransmitter that carries sensory information
Correct Answer: A
Rationale: A sensory sensor (receptor) is a specialized cell that
converts external or internal stimuli into neural signals. Option
A correctly defines a sensor as a cell (often a neuron or receptor
cell) that detects stimuli. Option B is incorrect because glial cells
provide support and nutrition, not stimulus detection. Option C
is incorrect because brain regions process information but do
not themselves sense stimuli. Option D is incorrect because
neurotransmitters are chemical messengers, not the structures
that detect stimuli.
Question 2
Which of the following structures is NOT part of the central
nervous system (CNS)?
A. Cerebral cortex
B. Brainstem
, C. Dorsal root ganglion
D. Spinal cord
Correct Answer: C
Rationale: The CNS consists of the brain (cerebral cortex,
brainstem, etc.) and the spinal cord. A dorsal root ganglion is a
cluster of sensory neurons located outside the spinal cord (in
the peripheral nervous system). Options A, B, and D are parts of
the CNS. Option C is incorrect as listed because the dorsal root
ganglion is PNS.
Question 3
Which statement correctly contrasts somatic and autonomic
nervous system functions?
A. Somatic innervation controls voluntary skeletal muscle;
autonomic innervation controls involuntary muscles and glands.
B. Somatic innervation controls smooth muscle; autonomic
controls skeletal muscle.
C. Somatic pathways include sympathetic and parasympathetic
branches; autonomic is only motor to muscles.
D. Somatic neurons have their cell bodies in the dorsal horn;
autonomic in the ventral horn.
Correct Answer: A
Rationale: Somatic nerves innervate skeletal muscle under
voluntary control, whereas autonomic nerves regulate
involuntary functions in smooth muscle, cardiac muscle, and