CLINICAL ENCOUNTERS
BELLS PALSY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Muscles of facial expression
|
|
|
Muscles of mastication
|
|
|
Taste on the anterior 2/3 of the tongue
|
|
|
Tear & saliva production
|
Detailed explanation-1: -As stated, the facial nerve innervates the following: The muscles of facial expression – responsible for the expression of emotions by changing facial expression. The stylohyoid muscle – draws the hyoid bone backward, which initiates a swallowing action and elevates the tongue.
Detailed explanation-2: -The facial nerve performs these motor (movement) and sensory functions: Controls the muscles that make your facial expressions. Controls muscle in your inner ear that moderates loudness of sound. Helps make tears.
Detailed explanation-3: -The facial nerve is responsible for closing the eyes by contracting the orbicularis oculi muscle. A lesion affecting the lower motor neuron part of the facial nerve (Bell palsy) will result in the unilateral facial drooping. The ipsilateral orbicularis oculi muscle will be affected, resulting in incomplete eye closure.