Spinal Cord (CNS) Test Questions and Answers Rated A
In addition to its role in spinal reflex activity, the
spinal cord also ________. A) mixed sensory and motor
B) motor
A) perceives sensation C) sensory - ANSWER -B) motor
B) contains sensory and motor tracts traveling to
and from higher nervous centers
C) is associated with consciousness These fiber tracts carry signals about voluntary
D) controls movement of the limbs - movement to the spinal cord.
ANSWER -B) contains sensory and motor
tracts traveling to and from higher nervous A) spinothalamic tracts
centers B) dorsal white columns
C) corticospinal tracts
D) spinocerebellar tracts - ANSWER -C)
What functional type of neuron is found in the corticospinal tracts
dorsal root ganglion?
A) motor The ventral rami of spinal nerves ________ form
B) both sensory and motor the major nerve plexuses.
C) sensory
D) There are only interneurons in the dorsa root A) C1 through T1 and L1 through S4
ganglion. - ANSWER -C) sensory B) C1 through T1
C) T2 through T12
D) L1 through S4 - ANSWER -A) C1
These fiber tracts run between the dorsal horns. through T1 and L1 through S4
A) spinothalamic tracts
B) dorsal white columns The dorsal rami of spinal nerves ________.
C) corticospinal tracts
D) spinocerebellar tracts - ANSWER -B) A) form nerve plexuses that serve the limbs
dorsal white columns B) serve the skin and muscles of the posterior
body trunk
C) serve the muscles of the intercostal spaces
Somatosensory functions are carried out in this and skin and muscles of the anterior trunk -
part of the spinal cord. ANSWER -B) serve the skin and muscles of
the posterior body trunk
A) lateral fiber tracts and lateral horns
B) ventral fiber tracts and ventral horns
C) lateral and ventral fiber tracts and ventral Transection of the dorsal roots of spinal nerves
horns C5 through T1 results in ________.
D) dorsal white columns and dorsal horns -
ANSWER -D) dorsal white columns and A) loss of movement in the upper limb on the
dorsal horns same side of the body
B) loss of sensation in the upper limb on the
same side of the body
Ventral roots of spinal nerves are purely or C) loss of movement in the upper limb on the
primarily ________. opposite side of the body
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In addition to its role in spinal reflex activity, the
spinal cord also ________. A) mixed sensory and motor
B) motor
A) perceives sensation C) sensory - ANSWER -B) motor
B) contains sensory and motor tracts traveling to
and from higher nervous centers
C) is associated with consciousness These fiber tracts carry signals about voluntary
D) controls movement of the limbs - movement to the spinal cord.
ANSWER -B) contains sensory and motor
tracts traveling to and from higher nervous A) spinothalamic tracts
centers B) dorsal white columns
C) corticospinal tracts
D) spinocerebellar tracts - ANSWER -C)
What functional type of neuron is found in the corticospinal tracts
dorsal root ganglion?
A) motor The ventral rami of spinal nerves ________ form
B) both sensory and motor the major nerve plexuses.
C) sensory
D) There are only interneurons in the dorsa root A) C1 through T1 and L1 through S4
ganglion. - ANSWER -C) sensory B) C1 through T1
C) T2 through T12
D) L1 through S4 - ANSWER -A) C1
These fiber tracts run between the dorsal horns. through T1 and L1 through S4
A) spinothalamic tracts
B) dorsal white columns The dorsal rami of spinal nerves ________.
C) corticospinal tracts
D) spinocerebellar tracts - ANSWER -B) A) form nerve plexuses that serve the limbs
dorsal white columns B) serve the skin and muscles of the posterior
body trunk
C) serve the muscles of the intercostal spaces
Somatosensory functions are carried out in this and skin and muscles of the anterior trunk -
part of the spinal cord. ANSWER -B) serve the skin and muscles of
the posterior body trunk
A) lateral fiber tracts and lateral horns
B) ventral fiber tracts and ventral horns
C) lateral and ventral fiber tracts and ventral Transection of the dorsal roots of spinal nerves
horns C5 through T1 results in ________.
D) dorsal white columns and dorsal horns -
ANSWER -D) dorsal white columns and A) loss of movement in the upper limb on the
dorsal horns same side of the body
B) loss of sensation in the upper limb on the
same side of the body
Ventral roots of spinal nerves are purely or C) loss of movement in the upper limb on the
primarily ________. opposite side of the body
1/3
