GROSS ANATOMY
CRANIAL NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CN I
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CN II
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CN IV
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CN VI
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Detailed explanation-1: -Cranial Nerve II The examiner stands three feet away from the patient, and the patient focuses on the examiner’s eyes or nose. A pen or a finger is moved toward the center of the visual field in all four quadrants, and the patient will indicate when they can see the object.
Detailed explanation-2: -9th and 10th Cranial nerves The 9th (glossopharyngeal) and 10th (vagus) cranial nerves are usually evaluated together.
Detailed explanation-3: -Cranial Nerves 9 & 10-Motor The motor division of CN 9 & 10 is tested by having the patient say “ah” or “kah". The palate should rise symmetrically and there should be little nasal air escape. With unilateral weakness the uvula will deviate toward the normal side because that side of the palate is pulled up higher.
Detailed explanation-4: -Hearing is first tested in each ear by whispering something while occluding the opposite ear. Vestibular function can be evaluated by testing for nystagmus. If patients have acute vertigo during the examination, nystagmus is usually apparent during inspection. More items