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 statement correctly distinguishes components of the
CNS versus the PNS?
A. The cerebral cortex is part of the PNS.
B. Spinal nerves are part of the CNS.
C. The brainstem and spinal cord are CNS; cranial and spinal
nerves are PNS.
D. The cerebellum is part of the PNS.
Correct Answer: C
Rationale: The central nervous system (CNS) includes the brain
(cerebral cortex, brainstem, cerebellum, basal ganglia,
thalamus, etc.) and the spinal cord, whereas the peripheral
nervous system (PNS) consists of all 12 cranial nerves and 31
spinal nerves emerging from the CNS. Thus, the brainstem and
spinal cord are CNS structures, and cranial and spinal nerves are
PNS. Option A is incorrect because the cerebral cortex (brain) is
CNS, not PNS. Option B is incorrect because spinal nerves are
PNS, not CNS. Option D is incorrect because the cerebellum is
part of the brain (CNS), not the PNS.
Question 2
Which meningeal layer lies directly on the surface of the brain,
following its sulci and gyri?
A. Dura mater
, B. Arachnoid mater
C. Pia mater
D. Falx cerebri
Correct Answer: C
Rationale: The three meninges from superficial to deep are dura
mater, arachnoid mater, and pia mater. The pia mater is a thin,
delicate membrane that adheres tightly to the surface of the
brain and spinal cord, following their contours (sulci and gyri).
The dura mater (Option A) is the tough outer layer attached to
the skull, and the arachnoid (Option B) lies between dura and
pia; neither follows the brain surface as closely as the pia. The
falx cerebri (Option D) is a dural reflection between
hemispheres, not a separate meningeal layer.
Question 3
Which of the following structures is part of the peripheral
nervous system (PNS)?
A. Cerebral cortex
B. Medulla oblongata
C. Spinal nerve
D. Thalamus
Correct Answer: C
Rationale: Spinal nerves are PNS structures. The PNS consists of
all cranial nerves and spinal nerves emanating from the CNS.
Option A (cerebral cortex), Option B (medulla oblongata), and