Auditory System

Question 1

Peripheral Auditory System

Answer 1

Outer and middle ear

Question 2

Central Auditory Nervous System

Answer 2

Inner ear-cochlear nucleus to primary auditory cortex

Question 3

Outer ear

Answer 3

Function: Resonator and amplifier

Consist of pinna, external auditory meatus

Question 4

Pinna

Answer 4

Sound localization

Question 5

External auditory meatus

Answer 5

Also known as ear canal; Sound amplifier - open at one end closed at other

Question 6

Middle Ear

Answer 6

Function: conduction and protection

Consist of tympanic membrane, ossicular chain (maleus, incus, stapes), middle ear muscles (stapedius and tensor tympani), and eustachian tube

Question 7

Middle ear muscles

Answer 7

Stapedius (CN VII) and tensor tympani (CN V)

Question 8

Inner Ear

Answer 8

Function: converts mechanical sound waves to electrical activity and neural impulses

Consist of the temporal bone, cochlea, basilar membrane, and organ of corti

Question 9

Auditory Nerve (CN VIII)

Answer 9

Transmits auditory and vestibular info from ear to brain