Chapter 17b Pathology

Question 1

acoustic neuroma

Answer 1

benign tumor arising from the acoustic vestibulocochlear nerve (eighth cranial nerve) in the brain

Question 2

cholesteatoma

Answer 2

collection of skin cells and cholesterol in a sac within the middle ear

Question 3

deafness

Answer 3

loss of the ability to hear

Question 4

Meniere disease

Answer 4

disorder of the labyrinth of the inner ear; elevated endolymph pressure within the cochlea (cochlear hydrops) and semicircular canals (vestibular hydrops)

Question 5

otitis media

Answer 5

inflammation of the middle ear

Question 6

otosclerosis

Answer 6

hardening of the bony tissue of the middle ear

Question 7

tinnitus

Answer 7

sensation of noises in the ears without an external source

Question 8

vertigo

Answer 8

sensation of irregular or whirling motion either of oneself or of external objects