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22 Cards in this Set

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  • Back
The phrenic nerve is a spinal nerve branch innervating the diaphragm muscle. (True or False)
True
Polysynaptic reflexes are generally faster than monosynaptic reflexes. (True or False)
False
Cranial nerves are considered part of the central nervous sytem. (True or False)
False
There are 62 spinal nerves in the human body,
True
The optic nerve controls the muscles that move the eyeball. (True or False)
False
Axons in the peripheral nervous system are meylinated by neuroglial cells called __________.
Schwann cells or oligodendrocytes
Cell bodies of afferent neurons are located in the __________.
dorsal root ganglion
Another name for the vestibulocochlear nerve is the __________ nerve.
auditory
__________ is the neurotransmitter that is released by somatic motor nerves at the skeletal muscle motor endplate.
acetylcholine
The most cephalic group of spinal nerves are the __________ nerves.
cervical
The sciatic nerve arises from the __________ plexus.
sacral
Efferent spinal neurons carrying impulses from the CNS to the skeletal muscles will most likely have their somas located in the
a) spinal cord white matter
b) spinal cord gray matter
c) central spinal canal
d) ventral root ganglion
e) dorsal root ganglion
b) spinal cord gray matter
Sudden appearance of "cross eyes" would most likely indicate a lesion of which cranial nerve?
a) oculomotor
b) abducens
c) trigeminal
d) vestibulocochlear
e) trochlear
b) abducens
After brain surgery, a patient has difficulty with mastication and experiences numbness of the teeth and gums. This defect could be caused by a severed:
a) vestibulococohlear nerve
b) accessory nerve
c) glossopharyngeal nerve
d) trigeminal nerve
e) facial nerve
d) trigeminal nerve
The primary cranial nerve for movement of the tongue is the __________ nerve.
a) hypoglossal
b) brachial
c) spinal accessory
d) vagus
e) glossopharyngeal
a) hypoglossal
Severing only the ventral root of a cervical spinal nerve would cause loss of some
a) autonomic motor function
b) somatic motor function
c) sensory perception
d) a and b
e) all of the above
b) somatic motor function
Severing only the dorsal root of a thoracic spinal nerve would cause loss of some
a) autonomic motor function
b) somatic motor function
c) sensory perception
d) a and b
e) all of the above
c) sensory perception
The cell bodies of somatic efferent neurons of the spinal nerves are located in the
a) dorsal root
b) gray matter of the spinal cord
c) ventral root
d) white matter of the spinal cord
e) spinal plexus
b) gray matter of the spinal cord
Which of the following cranial nerves is not directly associated with the eye?
a) optic
b) trochlear
c) trigeminal
d) abducens
e) oculomotor
c) trigeminal
A person who had lost all taste sensation would most likely be experiencing pathology of the __________ nerve(s).
a) glossopharyngeal
b) hypoglossal
c) facial
d) a and c
e) b and c
d) a and c (glossopharyngeal and facial)
As a result of a car accident in which he was thrown through the windshield, John Doe is experiencing balance problems. Which cranial nerve was mostly damaged?
a) occulomotor
b) spinal accessory
c) trigeminal
d) facial
e) auditory
e) auditory
Which of the following drugs mimics the action of acetylcholine at the skeletal muscle motor endplate?
a) cocaine
b) Novocain
c) caffeine
d) nicotine
e) amphetamines
d) nicotine