BRAIN
CRANIAL NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Convergence
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Pupillary light reflex
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Confrontation Testing
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The Sniff test to a familiar smell; one nostril at a time
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Detailed explanation-1: -The patient places an index finger over one nostril to block it (e.g., right index finger over right nostril). He or she then closes the eyes. Instruct the patient to sniff repetitively and to tell you when an odor is detected, identifying the odor if recognized.
Detailed explanation-2: -The general concept of olfactory testing in the clinic is that an olfactory probe is presented at the patient’s nostrils, and the response of the patient is documented. This is also referred to as psychophysical testing.
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.