Question

which of the following is the ankylosis of the bones of the middle ear, resulting in a conductive hearing loss?
a. ménières disease
b. cholesteatoma
c. otosclerosis
d. labyrinthitis

Explanation:

Otosclerosis is the abnormal hardening (ankylosis) of the middle - ear bones, leading to conductive hearing loss. Ménière's disease is related to inner - ear fluid problems, cholesteatoma is a non - cancerous growth in the middle ear, and labyrinthitis is an inner - ear inflammation.

Answer:

C. otosclerosis