ear anatomy

Question 1

part of the ear Involved in hearing only

Answer 1

external ear

Question 2

Structures of the external ear

Answer 2

pinna and external auditory canal

Question 3

Narrow chamber in the temporal bone

Lined with skin

Answer 3

external auditory canal

Question 4

Ceruminous (wax) glands are present

Answer 4

external auditory canal

Question 5

Ends at the tympanic membrane

Answer 5

external auditory canal

Question 6

Air-filled cavity within the temporal bone

Only involved in the sense of hearing

Answer 6

tympanic cavity

Question 7

Bones of the Tympanic Cavity

Answer 7

Malleus (hammer)
Incus (anvil)
Stapes (stirrup)

Question 8

These transfer sound to the inner ear

Answer 8

ossicles

Question 9

Includes sense organs for hearing and balance

Filled with perilymph

Answer 9

Inner Ear or Bony Labyrinth

Question 10

A maze of bony chambers within the temporal bone

Answer 10

Inner Ear or Bony Labyrinth

Question 11

structures of the inner ear

Answer 11

Cochlea
Vestibule
Semicircular canals

Question 12

Located within the cochlea

Receptors = hair cells on the basilar membrane

Answer 12

organ of corti

Question 13

Receptor cells for equilibriumare in two structures

Answer 13

vestibule and semicircular canals

Question 14

– receptors in the vestibule
Report on the position of the head
Send information via the vestibular nerve

Answer 14

maculae

Question 15

(tiny stones) float in a gel around the hair cells

Answer 15

otoliths

Question 16

hair cells of macule are embedded in

Answer 16

otolithic membrane

Question 17

– receptors in the semicircular canals

Answer 17

Crista ampullaris

Question 18

dynamic equilibrium

(gelatinous cap) covers the hair cells

Answer 18

cupula