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Facial nerve and its disorders

Question
11 out of 33
 

Which one of the following statements is correct in facial paralysis? [MP 2009]



A The naso labial fold is obliterated on same side

B The naso labial fold is obliterated on opposite side

C The face deviates to the same side

D The face deviates to the opposite side

Ans. A nasolabial fold is obliterated on the same side

Always remember: Lower motor neuron type of facial paralysis is much more common than upper motor neuron type. If any question is asked on facial paralysis unless and until it mentions 'UMN type, all paralysis should be taken as LMN type. LMN type facial paralysis causes ipsilateral facial paralysis.

Following features are seen in Facial nerve paralysis:

a. Loss of wrinkles (on ipsilateral side in LMN type paralysis)

b. Wide palpebral fissure (on ipsilateral side)

c. Epiphora (on ipsilateral side)

d. Absence of nasolabial fold (on ipsilateral side)

e. Drooping of angle of mouth (on ipsilateral side)

Note

In facial nerve paralysis - the peripheral branches supplying the facial muscles will be paralysed which will lead to, paralysis of facial muscles on the ipsilateral side and angle of mouth will be deviated to opposite side (Not the whole face so option d is incorrect)

Facial nerve and its disorders Flashcard List

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