Auditory and Vestibular Systems

Question 1

Input above cochlear nuclei is

Answer 1

Bilateral

Question 2

Which 2 nuclei important in sound localization and as relays for stapedial and tensor tympany reflexes

Answer 2

Superior olivary nucleus

nucleus of lateral lemniscus

Question 3

Anterolateral part of auditory cortex carry what frequency of sound

Answer 3

Low

Question 4

Posteromedial part of auditory cortex carry what frequency of sound

Answer 4

High

Question 5

Damage to Brocas area

Answer 5

Difficultly producing language,still comprehend language

Question 6

Damage to Wernickes’s area

Answer 6

Difficultly comprehending language, meaningless words

Question 7

Maintenance of eqm from

Answer 7

Vision
Proprioception
Vestibular appratus

Question 8

Detect head position (hair cells)

Answer 8

Urucle and Saccule

Question 9

Detect movement (hair cells)

Answer 9

Semicircular canals

Question 10

Ampulla

Answer 10

Swelling

Question 11

Crista ampullaris

Answer 11

What ampulla is within
Core of CT
Covers hair cells with sterocilia

Question 12

Stereocilia

Answer 12

Embedded in dome of gelatinous material = cupola
Similar density to fluid
Responds to turning movement (angular acceleration)

Question 13

Fluid filled spaces lined with

Answer 13

Simple cuboidal epithelium

Question 14

Macula

Answer 14

Sensory epithelium

Question 15

Otoconia

Answer 15

gelatinous layer which in turn has crystals of calcium carbonate and protein
sterocilia
ear sand

Question 16

What is affected by gravity

Answer 16

otoconia are denser than the endolymph fluid around them, they are affected by gravity and therefore provide information about the position of the head when it is static