QuestionSBA
QuestionChoice
The tensor tympani decreases sound transmission through the middle ear. It is innervated by the mandibular branch of the trigeminal nerve.
10026541
b
Tensor tympani
QuestionChoice
Frontalis muscle is one of the facial muscles producing facial expressions. It is innervated by the facial nerve and would be paralysed in facial nerve palsy. However, it has no role in hyperacusis.
10026544
e
Frontalis muscle
QuestionChoice
The transverse muscle of the auricle modifies the auricular shape, it has no function in dampening noises to protect the middle and inner ear.
10026543
d
Transverse muscle of the auricle
QuestionChoice
The temporalis muscle is one of the muscles of mastication. It is innervated by the trigeminal nerve.
10026542
c
Temporalis muscle
QuestionChoice
The stapedius is a small muscle in the middle ear, innervated by the facial nerve. Its primary function is to stabilize the stapes bone and regulate sound, protecting your inner ear from damage due to loud noises. Its function can be lost with facial nerve palsy, producing hyperacusis due to loss of dampening.
10026540
a
Stapedius muscle
Concept
Chapter
2693
4303
Facial nerve palsy
Topic
141
Neurology
17706
A 45-year-old female patient with a current diagnosis of facial nerve palsy is troubled by hyperacusis.

Which muscle is responsible for her symptoms?
a