Ear

Question 1

areas in the ear (3)

Answer 1

outer, middle, inner

Question 2

bony roof of ear canal

Answer 2

petrous part of temporal bone

Question 3

petrous bone is

Answer 3

hard

Question 4

what is over the oval window

Answer 4

stapes

Question 5

membrane between outer and middle ear

Answer 5

tympanic membrane

Question 6

visible ear on the outside

Answer 6

auricle

Question 7

what does the auricle do

Answer 7

collects sound

Question 8

what supports the auricle

Answer 8

cartilage

Question 9

parts of the auricle (7)

Answer 9

helix, lobule, tragus, anti helix, anti tragus, concha, ear canal

Question 10

what nerve supplies the posteroinferior ear

Answer 10

vagus CX

Question 11

what nerve supplies the anterosuperior ear and the external surfaces of the tympanic membrane

Answer 11

auriculotemporal nerve V3

Question 12

what lines thee ear canal in the outer ear (2)

Answer 12

hairy skin and cerumen glands

Question 13

what does hairy skin and cerumen glands do

Answer 13

prevent maceration of skin with water

Question 14

medial 2/3 floor of the outer ear canal

Answer 14

temporal bone

Question 15

lateral 1/3 floor of outer ear canal

Answer 15

cartilagenous

Question 16

outer ear canal name

Answer 16

external acoustic meatus

Question 17

lateral surface features of the tympanic membrane (3)

Answer 17

flaccid area, handle of malleus, cone of light

Question 18

where is the cone of light located in the lateral surface of the tympanic membrane

Answer 18

antero inferior quadrant

Question 19

superior cavity in middle ear just after the tympanic membrane

Answer 19

epitympanic recess

Question 20

what pathway attaches to the epitympanic recess

Answer 20

to mastoid air cells

Question 21

medial to the tympanic membrane

Answer 21

tympanic cavity proper

Question 22

what projects anteroinferiorly to nasopharynx

Answer 22

auditory tube

Question 23

other names for the auditory tube (2)

Answer 23

Eustachian tube and pharyngotympanic tube

Question 24

what happens if the tympanic membrane is damaged

Answer 24

hearing problems

Question 25

small bones in the middle ear

Answer 25

ossicles

Question 26

ossicles (3)

Answer 26

malleus, incus, stapes

Question 27

parts of the stapes (2)

Answer 27

base and head

Question 28

parts of the incus (2)

Answer 28

lenticular process and body

Question 29

parts of the malleus (2)

Answer 29

head and handle

Question 30

joint between ossicles

Answer 30

synovial

Question 31

eustachian tubes in children are what compared to adults

Answer 31

more horizontal

Question 32

what is located on the anterior wall of the middle ear

Answer 32

tensor tympani

Question 33

what supplies tensor tympani

Answer 33

CNV

Question 34

what is located on the posterior wall of the middle ear

Answer 34

stapedius

Question 35

what nerve supplies stapedius

Answer 35

CNVII

Question 36

elements of lateral view of medial wall of middle ear (6)

Answer 36

chorda tympani, tensor tympani, promontary, round window, stapedius, stapes over oval window

Question 37

tensor tympani innervated by

Answer 37

CNV trigeminal

Question 38

stapedius is innervated by

Answer 38

CNVII facial

Question 39

elements of the medial view of lateral wall of middle ear (9)

Answer 39

tensor tympani, malleus, incus, epitympanic recess, chorda tympani, facial nerve in facial canal, tympanic membrane, internal carotid artery, eustachian tube

Question 40

inner ear surrounding elements (5)

Answer 40

oval window, round window, petrous part of temporal bone, bony labyrinth, membranous labyrinth

Question 41

bony labyrinth is filled with

Answer 41

perilymph

Question 42

membranous labyrinth is filled with

Answer 42

endolymph