McGillicuddy is an active 80-year-old, but she has trouble hearing. Her hearing improves after she is fitted with a hearing aid. Mrs. McGillicuddy is suffering from _____ deafness, which was probably caused by _____.
A)nerve; exposure to very loud noise
B)conduction; damage to the pinna, the ear canal, and the eardrum.
C)conduction; the hammer, the anvil, and the stirrup becoming brittle
D)nerve; deterioration of the auditory nerve

Question

Quizplus · Accepted Answer

Conduction deafness occurs when there is a problem conducting sound waves anywhere along the route through the outer ear, tympanic membrane (eardrum), or middle ear (ossicles: hammer, anvil, and stirrup). In older adults, this can happen due to the ossicles becoming brittle.

McGillicuddy Is an Active 80-Year-Old, but She Has Trouble Hearing