Module 2 PP 2

Question 1

Peripheral:
conductive:

sensorineural:
mixed:

central:

Answer 1

caused by a problem in the outer or middle ear

caused by a problem in the cochlea or VIII nerve

caused by a problem in the brainstem or brain

Question 2

Causes: Conductive Loss

conductive: 
-
-
-
eustachian tube dysfunction: 
-
-
growth in
-
-

Answer 2

atresia
canal occlusion (wax or foreign body)
-tympanic membrane perforation
TM scarring

• negative middle ear pressure
• fluid or pus in middle ear cavity

middle ear
ossicular disarticulation
otosclerosis

Question 3

Causes: SNHL
-many diff.
-oxygen
-
-trauma
-
-
-
-
-tumor on 
-auditory ?

Answer 3

syndromes/disorders/diseases
deprivation
infection

• blow or pressure to head
• intense noise exposure

ototoxicity
presbycusis
tumor on VIII cranial nerve
auditory neuropathy/auditory dys-synchrony

Question 4

causes central:
abnormalities in ? 
-
-
-
-

Answer 4

structure an for function of the brainstem or auditory centers of the brain

• agenesis/dysgenesis
• lesions
• vascular accidents/dysfunction
• trauma