Anatomy of Hearing

Question 1

Anatomy is the study of the ?

physiology: how structures?

Answer 1

structures of the body and the relationship of these structures to one another

work together to result in function

Question 2

two main components of the auditory system:
Peripheral auditory system:
Central Auditory System :

Answer 2

PAS: begins with the outer ear and ends with the auditory nerve

CAS: begins at the point beyond the auditory nerve and ends in auditory centers of the brain

Question 3

PAS outer ear

Answer 3

pinna (or auricle)
external auditory canal
concha
lobule

Question 4

PAS middle ear:
tympanic membrane (a.k.a): 
Ossicular chain: 
-
-
Eustachian Tube:

Answer 4

(eardrum) amplifies sound

malleus (largest), incus, stapes
amplifies sound

equalizes pressure

Question 5

The Eustachian Tube:
connects ?
protects? and ?
pressure equalizer ?

Answer 5

middle ear space to pharynx
aerates, and drains the middle ear
-middle ear=environment

Question 6

PAS: Inner ear 
?
-
vestibular system: 
-
auditory or?

Answer 6

innermost part of the ear 
cochlea 
balance 
-semicircular canals 
cochlear nerve

Question 7

CAS:

information travels from the organ of the ? along the brainstem to the ?

Answer 7

Corti/primary auditory cortex, via the auditory nerve (CN VIII)