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Flashcards in Ear Deck (63):
0

Name the arteries which supply the auricle.

posterior auricular a. & superficialtemporal a. -> both from external carotid a.

1

Name the nerve which innervates the lower cranial surface of the auricle.

posterior branch of the great auricular n of C2 & C3

2

Lymph from the superior half of the cranial surface of the auricle drains into the: (2) a. superficial parotid lymph nodes. b. mastoid lymph nodes. c. superficial cervical lymph nodes. d. deep cervical lymph nodes.

b. mastoid lymph nodes d. deep cervical lymph nodes

3

Name the gland which produces earwax.

Ceramucus and sebaceous glands

4

What is the size in diameter of the tympanic membrane?

1cm

5

The tympanic membrane is the partition between the _____ and ____

external acoustic meatus and tympanic cavity

6

Name the shallow central peak of the tympanic membrane

umbo

7

The tympanic membrane faces to anterior, inferior and laterally. True/False

true (ALI)

8

The superior to the lateral process of the malleus attachment on the tympanic membrane is called______.

flaccid part (or pars flaccid)

9

The external surface of the tympanic membrane is innervated by the a. auricular nerve. c. chorda tympanic. b. tympanic nerve. d. craticotympanic nerve.

auricular nerve (auriculotemporal)

10

The internal surface of the tympanic membrane is innervated by the a. auricular nerve. c. chorda tympanic. b. tympanic nerve. d. craticotympanic nerve.

B. tympanic nerve of glossopharyngeal

11

Name the features on the medial wall of the tympanic cavity features.

features the promontory of the labyrinthine wall, formed by the initial (basal) part of the cochlea, the oval and round windows. (?)

12

The space superior to the tympanic membrane in the tympanic cavity is called _____.

epitympanic or superior tympanic recess

13

All of the following are the contents of the middle ear, EXCEPT a. malleus. b. incus. c. stapes d. modiolus

modiolus

14

Which of the following indicates the floor of the tympanic cavity? a. tegmental wall b. jugular wall c. carotid wall d. mastoid wall

B. Jugular wall (tegmental roof) (carotid anterior) (Mastoid posterior) (Labyrinthine medial) (Membranous lateral)

15

Name the arteries which supply the pharyngotympanic tube.

Ascending pharyngeal arteries of external carotid artery middle meningeal artery and artery of the pterygoid canal from maxillary

16

The auditory ossicles transmit the sound wave from ____ to ____ leading to the vestibule of the labyrinth

across the tympanic cavity from the tympanic membrane to the oval window (fenestra vestibule)

17

The ossicles are covered with regular osteogenic periosteum. True/False

False (lack an osteogenic periosteum) because if they had a periosteum they could grow.

18

Name the part of the malleus that attaches to the flaccid part of the tympanic membrane.

Neck of malleus

19

Which of the following describes the umbo correctly? a. Tip of the handle of the malleus b. Neck of the malleus c. Tip of the handle of the incus d. Neck of the stapes

tip of the handle of the malleus

20

The lenticular process (of incus) articulates with ____________.

head of stapes

21

The tensor tympanic inserts into ___________.

handle of malleus

22

The head of the malleus lies in the ______________________

epitymapinic recess

23

The base of the stapes is considerably smaller than the tympanic membrane, as a result the vibratory force of the stapes is increased approximately _____ times over that of the tympanic membrane.

10

24

The auditory ossicles increase the force of the vibrations transmitted from the tympanic membrane.True/False

True (but decrease the amplitude)

25

The tensor tympani arises from ____, and inserts to ____________.

superior surface of pharyngotympanic tube, greater wing of sphenoid, and the petrous part of the temporal bone handle of the malleus

26

The tensor tympani is innervated by the ___.

nerve to the medial pterygoid muscle

27

Name the wall where the pyramidal eminence is for the stapedius muscle emergence

posterior wall of tympanic cavity (mastoid wall)

28

The otic capsule of the internal ear contains , , and .

Cochlea, vestibule, semicircular canals

29

The cochlea is the shell-shaped part of the bony labyrinth that contains for the hearing.

cochlear duct

30

Name the bony core of the cochlear

modiolus

31

The spiral canal of the cochlea begins at the ______ and makes ___ turns around the bony core

vestibule, 2.5

32

The bony core of the cochlea is called

modiolus

33

The large basal turn of the cochlea produces the _______ on the labyrinthine wall

prominitory

34

The large basal turn of the cochlea produces , which is part of the labyrinthine wall of the tympanic cavity

prominitory

35

Name the communicating feature between the basal turn of the cochlea and the subarachnoid space superior to the jugular foramen

cochlear aquaduct

36

Name the structure, which covers the round window at the basal turn of the cochlear

secondary tympanic membrane

37

The vestibule of the bony labyrinth is a small oval chamber that contains the and

utricle and sacule

38

Name the feature, which communicates the vestibule to the posterior cranial fossa

aqueduct of the vestibule

39

Name the feature, which transmits the endolymphatic duct

vestibular aqueduct

40

How many openings from the semicircular canals to the vestibule?

5

41

The membranous labyrinth composed of and

vestibular and cochlear

42

The vestibular labyrinth contains two small communicating sacs which are known as and

utricle and sacule

43

Name the spiral thickening of the periosteal lining of the cochlear canal, which secures the cochlear duct to the spiral canal of the cochlea.

spiral ligament

44

Name the feature where the semicircular ducts open through openings

utricle

45

Name the feature where the endolymphatic duct arises

from the bone of the posterior cranial fossa

46

Name the feature which connects the saccule to the cochlear duct, as a uniting duct

ductus reuiens

47

The primary sensory neurons of the cochlear ampulae are in ganglia, which are in the internal acoustic meatus.

vestibular ganglia

48

The cochlear duct is a spiral tube, which is firmly suspended across the cochlear canal between the on the external wall of the cochlear canal and the ________________ of the modiolus respectively

spiral ligament, osseous spiral lamina

49

Name the feature of the semilunar communication at the apex of the cochlea between two perilymph-filled spiral canals

helicotrema

50

Waves of hydraulic pressure created in the perilymph of the vestibule by the vibration of the base of the stapes ascend to the apex of the cochlea through the

scala vestibule

51

Waves of hydraulic pressure pass through the apex of the cochlear and then descend back to the basal turn of the cochlea through

scala tympani

52

Name the receptor organ of auditory stimuli

organ of corti

53

The receptor organ of auditory stimuli is situated on the .

basalar membrane and floor of the duct and outer edge of sooeus spiral lamina

54

The receptor organ of auditory stimuli is overlaid by

gelatenous tectorial membrane

55

Untreated auricular hematoma might result in the _____ or ____.

cauliflower ear, boxers ear

56

How do you pull the helix to observe the adult’s tympanic membrane for the otoscopic examination?

posteriorsuperiorly (up, out, back)

57

An earache and a bulging red tympanic membrane may indicate a sign of

otitis media

58

Infection of the mastoid antrum and mastoid cells from a middle ear infection might cause inflammation of the mastoid process known as

mastoiditis

59

Paralysis of the stapedius is associated with excessive acuteness of hearing called or

hyperacusis or hyperacusia

60

Hyperacusis results from uninhibited movements of the

stapes

61

Motion sickness results from discordance between and stimulation

vestibular and visual

62

Name the nerve which innervates the upper cranial surface of the auricle.

Lesser Occipital Nerve of C2 and C3