A. Which function remains intact with Bell\'s palsy? You can chew on both sides.

Question

A.

Which function remains intact with Bell's palsy?

You can chew on both sides.

B.

Both the parasympathetic and sympathetic divisions are part of the somatic motor nervous division.

False

C.

Little Jack is complaining that he cannot hear from his left ear. How can you determine whether this is caused by damage to his left ear or by damage to the vestibulocochlear nerve?

You can frown symmetrically. You can wrinkle your forehead on both sides. You can smile symmetrically.

You can chew on both sides.

B.

Both the parasympathetic and sympathetic divisions are part of the somatic motor nervous division.

True

False

C.

Little Jack is complaining that he cannot hear from his left ear. How can you determine whether this is caused by damage to his left ear or by damage to the vestibulocochlear nerve?

Strike a tuning fork and place it on his head. If he can hear the sound symmetrically, it means that the bone is conducting the sound to both ears, and both nerves are working. This means that there is damage to the ear itself. If he cannot hear the tuning fork on the left side, it implies the nerve itself is damaged. Examine the left ear. There could be damage to the eardrum or possibly the middle ear ossicles. Perform both exams.

Explanation / Answer

A. The answer is option D -> You can chew on both sides.

Bell's palsy affects the facial nerve so it makes frowning your eyebrows symmetrically difficult. Frowning of eyebrows becomes asymmetrical.

Wrinkling your forehead on both sides is also difficult with bilateral Bell's Palsy.

Patients also have difficulty in smiling symmetrically because of the pain in the facial nerve.

Chewing food in both sides of the mouth is possible and is actually advised by doctors to treat Bell's Palsy.

B. False

Parasympathetic and Sympathetic divisions are part of the Autonomic Nervous System.

C. Perform both exams

Strike a tuning fork and place it on his head. If he can hear the sound symmetrically, it means that the bone is conducting the sound to both ears, and both nerves are working. This test is called the Weber Test. If this test is positive then there is damage to the ear. If he cannot hear tuning from the left ear then it implies that the nerve itself is damaged.

Examining the left ear with Otoscope can possibly show if there is any conducting deafness. If it's positive then there is a possible damage to the eardrum or possibly the middle ear ossicles.

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