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 is the largest portion of the human
brain, comprising the majority of its mass and responsible for
higher cognitive functions?
A. Cerebellum
B. Brainstem
C. Diencephalon
D. Cerebrum
Correct Answer: D
Rationale: The cerebrum is the largest part of the brain, making
up about 80% of its volume and located above the brainstem. It
contains the cerebral cortex (lobes for sensory, motor, language,
etc.). This makes it much larger than the cerebellum (which
refines movement) or diencephalon/brainstem.
• Option A is incorrect because the cerebellum is much
smaller (around 10% of brain weight) and sits inferior to
the cerebrum, primarily coordinating movement.
• Option B is incorrect;
the brainstem (medulla/pons/midbrain) is smaller and
connects the cerebrum with the spinal cord.
• Option C is incorrect;
the diencephalon (thalamus/hypothalamus) is only a small
, part of the cerebrum’s lower structures. Only the
cerebrum is large enough to be the major portion.
Question 2
Which division of the nervous system controls voluntary motor
movements of skeletal muscles and relays external sensory
information to the central nervous system?
A. Autonomic nervous system
B. Sympathetic nervous system
C. Parasympathetic nervous system
D. Somatic nervous system
Correct Answer: D
Rationale: The somatic nervous system is the part of the
peripheral nervous system responsible for voluntary control of
skeletal muscles and conveying sensory information from skin,
muscles, and joints to the CNS. It includes conscious sensations
(e.g. touch, pain) and voluntary motor pathways.
• Option A (Autonomic nervous system) is incorrect because
the autonomic system governs involuntary functions (heart
rate, digestion) rather than conscious muscle control.
• Option B (Sympathetic) and C (Parasympathetic) are
subdivisions of the autonomic system, not involved in
voluntary control. They regulate involuntary processes
such as fight-or-flight (sympathetic) or rest-and-digest