Spinal Cord and Spinal Nerves – Practice Questions with Verified Answers – Anatomy, Tracts, Plexuses, and Reflex Pathways

Spinal Cord and Spinal Nerves (practice)
questions with verified answers
___ carry motor commands from the brain along the spinal cord.
Ans✓✓✓Descending tracts


___ fibers innervate eyes and ears. Ans✓✓✓Special


___ keep(s) nerve fibers insulated from one another.
Ans✓✓✓Endoneurium


A ganglion is a _____. Ans✓✓✓cluster of neurosomas in the PNS.


A patient has a gunshot wound that caused a bone fragment to nick the
spinal cord. The patient now feels no pain or temperature sensations
from that level of the body down. Most likely, the _____ was damaged.
Ans✓✓✓Spinothalamic Tract


A stab wound to the buttocks produces a sharp pain that travels from the
gluteal region along the posterior side of the thigh and leg as far as the
ankle. What nerve was damaged? Ans✓✓✓Sciatic


All somatic reflexes share all of the following properties EXCEPT they
are _____. Ans✓✓✓monosynaptic

, At the inferior end, the adult spinal cord ends before the vertebral
column does. T/F Ans✓✓✓True


Below L2, the vertebral canal is occupied by a bundle of spinal nerve
roots called the ______. Ans✓✓✓Cauda Equina.


Between the dura mater and vertebral bone, one is most likely to find
______. Ans✓✓✓adipose tissue


Each spinal cord segment has only one pair of spinal nerves. T/F
Ans✓✓✓True


From superficial to deep, the meninges occur in the order _________.
Ans✓✓✓dura mater,
arachnoid,
pia mater.


If the phrenic nerve were cut, what would be a result?
Ans✓✓✓Problems with breathing


Locomotion is a function of the spinal cord. T/F Ans✓✓✓True


Most lower motor neurons are located in the _______. Ans✓✓✓ventral
horns of the spinal cord