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NURS 5315 UTA PATHO TEST 4
QUESTIONS WITH 100% CORRECT
ANSWERS
Question: Cranial Nerve I: Olfactory Correct answer: sensory, smell; Sign of dysfunction: unable to identify aromatic substance
Question: Cranial Nerve II: Optic
Correct answer: sensory - carries impulse for vision;
Testing procedure: eye chart testing, visual field testing
Question: Cranial Nerve III: Oculomotor
Correct answer: motor - fibers to the superior, inferior and
medial rectus muscles of the eye and to the smooth muscle controlling lens shape. Medial and vertical eye movements; sensory - proprioception of the eye; Testing
procedure: pupil sizes are compared for shape and
equality, pupillary reflex is tested; visual tracking is tested
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Question: Cranial Nerve IV: Trochlear Nerve Correct answer: Motor: eye movement, extra ocular superior oblique muscle; Tested the same as CN III
Question: Cranial Nerve V: Trigeminal
Correct answer: motor and sensory for face, conducts
sensory impulses from mouth, nose, eyes; motor fibers for muscles of mastication. Control of jaw movements;
Testing procedure: pain, touch, and temperature are tested
with proper stimulus; corneal reflex tested with a wisp of cotton; person is asked to move jaw through full ranges of motion
Question: Cranial Nerve VI: Abducens
Correct answer: motor and proprioceptor fibers to/from
lateral rectus muscle. Lateral eye movements; Testing
procedure: tested in conjunction with cranial nerve III
relative to moving eye laterally
Question: Cranial Nerve VII: Facial
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Correct answer: mixed (sensory and motor) sensory fibers
to taste buds and anterior 2/3 tongue; motor fibers to muscles of facial expression and to salivary glands;
Testing procedure: check symmetry of face, ask person to
attempt various facial expressions; sweet, salty, sour, and bitter substances are applied to tongue to test tasting ability
Question: Cranial Nerve VIII: vestibulocochlear
Correct answer: Sensory - special senses of hearing and
balance; Foramen: internal auditory canal; Consequence
of Loss: loss of hearing, loss of balance and equilibrium,
nausea, vertigo, vomiting
Question: Cranial nerve IX: glossopharyngeal
Correct answer: motor fibers for pharynx and salivary
glands; sensory fibers for pharynx and posterior tongue.Taste sensation for sweet, bitter and sour; Testing
procedure: gag and swallow reflexes are checked;
posterior one third of tongue is tested for taste
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Question: Cranial Nerve X: Vagus
Correct answer: sensory/motor impulses for larynx and
pharynx; parasympathetic motor fibers supply smooth muscles of abdominal organs; sensory impulses from
viscera; Testing procedure: tested in conjunction with
cranial nerve IX
Question: Cranial Nerve XI: Spinal Accessory
Correct answer: Motor - to sternocleidomastoid and
trapezius; Foramen: foramen magnum, jugular foramen;
Consequence of Loss: difficulty elevating scapula or
rotating neck
Question: Cranial Nerve XII: Hypoglossal
Correct answer: motor/sensory fibers to/from tongue.
Movement of tongue; Testing procedure: ask person to
stick out tongue, positional abnormalities are noted