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NURS 5315 Module 7 Questions & Answers Latest Update
100% Solved.
Cranial Nerve I Function and sign of dysfunction - ✔✔✔Olfactory
sensory, carries impulses for sense and smell
Loss or disturbance in the sense of smell
Cranial Nerve II Function and sign of dysfunction - ✔✔✔Optic
Sensory, carries impulses for vision
decreased visual acuity and contrast sensitivity, impaired color vision, and an afferent
pupillary defect. (blindness)
Cranial Nerve III Function and sign of dysfunction - ✔✔✔Oculomotor
Contains motor fibers to interior oblique and to superior, inferior, ad medial rectus
extraocular muscles that direct eye ball; levator muscles of eyelid; smooth muscles of iris
and ciliary body; and proprioception (sensory) to brain from extraocular muscles
Drooping of the eyelid, eyeball moves outward, dilation of the pupil, double vision.
Cranial Nerve IV Function and sign of dysfunction - ✔✔✔Trochlear
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Propioceptor and motor fibers for superior oblique muscle of eye (extraocular muscles)
Rotation of eyeball upward and outward, double vision
Cranial Nerve V Function and sign of dysfunction - ✔✔✔Trigeminal
(facial muscles including chewing, facial sensation) This is the largest cranial nerve Both
motor and sensory for face; conducts sensory impulses from mouth, nose, surface of
eye, and dura mater; also contains motor fibers that stimulate chewing muscles
Sensory root - Pain or loss of sensation in the face, forehead, temple and eyes.
Motor root - affecting the jaw, trouble chewing
Cranial Nerve VI Function and sign of dysfunction - ✔✔✔Abducens
Moves the eyeballs outwards by sending nerve impulses to the lateral rectus muscles
Deviation of the eyes outward; double vision
Cranial Nerve VII Function and sign of dysfunction - ✔✔✔Facial
(taste, tears, saliva and facial expressions);
Mixed: 1. Supplies motor fibers to muscles of facial expression and to the lacrimal and
salivary glands.
2. Carries sensory fibers from taste buds of anterior part of tongue
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Paralysis of all the muscles in one side of the face, inability to wrinkle the forehead, close
the eye, whistle, deviation of the mouth. Bell's Palsy
Cranial Nerve VIII Function and sign of dysfunction - ✔✔✔Vestibulocochlear
(acoustic) auditory: Purely sensory; vestibular branch transmits impulses for sense of
equilibrium, cochlear branch transmits impulses for sense of hearing
Deafness or ringing in the ears, dizziness, nausea and vomiting
Cranial Nerve IX Function and sign of dysfunction - ✔✔✔Glossopharyngeal
(swallowing, saliva, taste)
Mixed: 1. Motor fibers serve pharynx and salivary glands. 2. Sensory fibers carry impulses
from, pharynx, posterior tongue, and pressure receptor of carotid artery (blood
pressure)
Disturbance of taste; Difficulty in swallowing
Cranial Nerve X Function and sign of dysfunction - ✔✔✔Vagus
(control of PNS: smooth muscles of GI tract); Sensory and motor impulses for pharynx; a
large part of this nerve is parasympathetic motor fibers, which supply smooth muscles
of abdominal organs
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Hoarseness and difficulty swallowing and talking.
This nerve also regulates the heart, blood vessels and digestion resulting in irregular
heartbeat and lowered blood pressure. It regulates the stomach telling it to move food
through the digestive system, thus damage can result in decreased digestion and thus
nausea, bloating and vomiting.
Cranial Nerve XI Function and sign of dysfunction - ✔✔✔Spinal Accessory
(Moving head & shoulders, swallowing); provides sensory and motor fibers for
sternocleidomastoid and trapezius muscles (movement of head and shoulders) and
muscles of soft palate, pharynx, and larynx (swallowing)
Dropping of the shoulder; inability to rotate the head away from affected area.
Cranial Nerve XII Function and sign of dysfunction - ✔✔✔Hypoglossal
(tounge muscles, speech, swallowing);Carries motor fibers to muscles of tongue and
sensory impulses from tongue to brain.
Paralysis of one side of the tongue; deviation of tongue toward paralyzed side; thick
speech.
Cerebrum Location, Function, Signs of injury/lesion/disorder - ✔✔✔Largest, most upper
portion of the brain. Divided into left and right hemispheres.
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NURS 5315 Module 7 Questions & Answers Latest Update
100% Solved.
Cranial Nerve I Function and sign of dysfunction - ✔✔✔Olfactory
sensory, carries impulses for sense and smell
Loss or disturbance in the sense of smell
Cranial Nerve II Function and sign of dysfunction - ✔✔✔Optic
Sensory, carries impulses for vision
decreased visual acuity and contrast sensitivity, impaired color vision, and an afferent
pupillary defect. (blindness)
Cranial Nerve III Function and sign of dysfunction - ✔✔✔Oculomotor
Contains motor fibers to interior oblique and to superior, inferior, ad medial rectus
extraocular muscles that direct eye ball; levator muscles of eyelid; smooth muscles of iris
and ciliary body; and proprioception (sensory) to brain from extraocular muscles
Drooping of the eyelid, eyeball moves outward, dilation of the pupil, double vision.
Cranial Nerve IV Function and sign of dysfunction - ✔✔✔Trochlear
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Propioceptor and motor fibers for superior oblique muscle of eye (extraocular muscles)
Rotation of eyeball upward and outward, double vision
Cranial Nerve V Function and sign of dysfunction - ✔✔✔Trigeminal
(facial muscles including chewing, facial sensation) This is the largest cranial nerve Both
motor and sensory for face; conducts sensory impulses from mouth, nose, surface of
eye, and dura mater; also contains motor fibers that stimulate chewing muscles
Sensory root - Pain or loss of sensation in the face, forehead, temple and eyes.
Motor root - affecting the jaw, trouble chewing
Cranial Nerve VI Function and sign of dysfunction - ✔✔✔Abducens
Moves the eyeballs outwards by sending nerve impulses to the lateral rectus muscles
Deviation of the eyes outward; double vision
Cranial Nerve VII Function and sign of dysfunction - ✔✔✔Facial
(taste, tears, saliva and facial expressions);
Mixed: 1. Supplies motor fibers to muscles of facial expression and to the lacrimal and
salivary glands.
2. Carries sensory fibers from taste buds of anterior part of tongue
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,3
Paralysis of all the muscles in one side of the face, inability to wrinkle the forehead, close
the eye, whistle, deviation of the mouth. Bell's Palsy
Cranial Nerve VIII Function and sign of dysfunction - ✔✔✔Vestibulocochlear
(acoustic) auditory: Purely sensory; vestibular branch transmits impulses for sense of
equilibrium, cochlear branch transmits impulses for sense of hearing
Deafness or ringing in the ears, dizziness, nausea and vomiting
Cranial Nerve IX Function and sign of dysfunction - ✔✔✔Glossopharyngeal
(swallowing, saliva, taste)
Mixed: 1. Motor fibers serve pharynx and salivary glands. 2. Sensory fibers carry impulses
from, pharynx, posterior tongue, and pressure receptor of carotid artery (blood
pressure)
Disturbance of taste; Difficulty in swallowing
Cranial Nerve X Function and sign of dysfunction - ✔✔✔Vagus
(control of PNS: smooth muscles of GI tract); Sensory and motor impulses for pharynx; a
large part of this nerve is parasympathetic motor fibers, which supply smooth muscles
of abdominal organs
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, 4
Hoarseness and difficulty swallowing and talking.
This nerve also regulates the heart, blood vessels and digestion resulting in irregular
heartbeat and lowered blood pressure. It regulates the stomach telling it to move food
through the digestive system, thus damage can result in decreased digestion and thus
nausea, bloating and vomiting.
Cranial Nerve XI Function and sign of dysfunction - ✔✔✔Spinal Accessory
(Moving head & shoulders, swallowing); provides sensory and motor fibers for
sternocleidomastoid and trapezius muscles (movement of head and shoulders) and
muscles of soft palate, pharynx, and larynx (swallowing)
Dropping of the shoulder; inability to rotate the head away from affected area.
Cranial Nerve XII Function and sign of dysfunction - ✔✔✔Hypoglossal
(tounge muscles, speech, swallowing);Carries motor fibers to muscles of tongue and
sensory impulses from tongue to brain.
Paralysis of one side of the tongue; deviation of tongue toward paralyzed side; thick
speech.
Cerebrum Location, Function, Signs of injury/lesion/disorder - ✔✔✔Largest, most upper
portion of the brain. Divided into left and right hemispheres.
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