Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy Module 8 > Auditory > Flashcards

Auditory Flashcards

1
Q

Contains vestibulocochlear organ

A

EAR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Consists of 3 main parts which are

A

External Middle Interana

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

collects sounds

A

Auricle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

conducts sounds

to tympanic memb

A

External acoustic meatus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Shell like part

Consists of single elastic cartilage which is continuous w/ cartilage of ext acoustic meatus

A

Auricle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

True or false: The Auricle Contains hair,sweat/sebaceous glands
Shape varies

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

no cartilage, can be pierced for earring

A

Lobule`

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Auditory passage

Extends fr concha to tympanic membr[TM]

A

External Acoustic Meatus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

S shaped, 2.5 cm long

A

External Acoustic Meatus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Composition of external meatus

A

Lateral/3 = cartilage -Medial 2/3 = bony

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

True or fasle

Infants= pure cartilage

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

COmposiion of Lateralpart of Meatus

A

Hair follicles
Sebaceous gl
Ceruminous gl

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Lined w/ thin skin and Isthmus

A

Medial parts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Consricted part of medial external meatus

A

Isthmus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Arterial supply of ear

A

1] Post auricular branch of external carotid artery
2] Deep auricular branch of
maxillary artery
3] Auricular br of superficial temporal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Venous drainage ofe Aer

A

1] External jugular vein
2] Maxillary vein
3] Pterygoid plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

NErveSupply

A

1] Auriculotempral n fr CN V
2] Tympanic plexus fr CN VII
3] Auricular branch fr CN X

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

How is Meatus directed?

A

Directed anteriorly and medially

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

When doing otoscopy, how do you examine the ear?

A

Pull the ear
Superiorly
Posteriorly
Laterally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Thin, semitransparent,oval membrane

Medial end of EAM

A

Tympanic Membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Separates external from middle ear
Oblique and slopes inferomedially
Pearly gray and shiny

A

Tympanic Membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Central depression of meatus formed by handleof Malleus

A

, umbo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the bright are that emanates in umbo?

A

cone of light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

True or false:
The Tympanic Membrane does not move in response to air vibrations that pass to it
Vibrations are transmitted from TM by auditory ossicles through the middle ear to internal ear

A

false
Moves in response to air vibrations that pass to it
Vibrations are transmitted from TM by auditory ossicles through the middle ear to internal ear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Arterial Supply of Tympanic Membrane

A

Maxillary artery
Deep auricular a
Posterior auricular a
Tympanic branch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Venous Drainage of tympanic

A

External jugular vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Nerve supplyof tympanic

A

Auriculotemporal n [CN V3]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Possible etiology of Perforation of Tympanic Membrane leadinf to deafness

A

Foreign Bodies
> Infection
> Excessive Pressure as in scuba diving

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Middle ear

A

Narrow cavity in petrous part of temporal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Contents of middle ear

A

Auditory ossiscles
Stapedius
Tensor tympani
Chorda tympani

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Anterior and Posterior connection of middle ear

A

Anterior: Nasopharynx
Posterosuperior: mastoid antrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What are the walls of middle ear

A
  1. Roof or Tegmental
  2. Floor or Jugular
  3. Lateral or Membranous
  4. Medial or Labyrinthine
  5. Posterior or Mastoid
  6. Interior or Carotid wall
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Roof or Tegmental is formed by?

A
  • formed by tegmen tympani

- separates ME fr dura

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Floor or Jugular is fromed by?

A
  • formed by bone

- sep ME fr int jugular vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

wall of mid ear formed by tymp membr

A

Lateral or Membranous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

where Semicircular ducts and cochlea are found

-sep ME from inner ear

A

Medial or Labyrinthine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

2 small window of labyrinthe

A

Fenestra vestibuli

Fenestra cochlea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

window closed by base of stapes

-through this window, vibrations of stapes are transmitted to inner ear

A

Fenestra vestibuli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q
  • closed by a secondary TM

- allows perilymph to move in response to impulses

A

Fenestra cochlea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

2 openings w/c connects which connect carotid with;;

A

1] w/ canal occupied by tensor tympani

2] w/ nasopharynx thru auditory tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

leads to mastoid antrum via an opening, aditus

-pyramidal eminence

A

MAstoid wall or posterior wall of Tm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Funnel shaped

Connects NP to middle ear

A

Auditory Tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Size and composition of auditory tube

A

3.5 to 4.0 cm long

1/3 bone, 2/3 cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Functions to Equalize pressure in middle ear w/ ATM pressure

A

Audiroty Tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Arterrial Supple of Auditory tube

A

1]Ascending pharyngeal a
2]middle meningeal art
3] artery of pterygoid canal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Venous drainage of Auditory tube

A

Pterygoid plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

innervated by Tympanic plexus[CN VII and IX]

A

Auditory tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Ear bones
Form a chain across middle ear
From TM to oval window

A

Auditory ossicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

True or F of Auditory Tube:

Function:Decrease the force but increaseamplitude of vibrations transmitted fr TM

A

False

Function: Increase the force but decrease amplitude of vibrations transmitted fr TM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

The ossicles

A

1] MALLEUS
2] INCUS
3] STAPES

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

rounded superior part
lies in epitympanic recess
articulates w/ incus

A

Head of Malleus

52
Q

lies vs flaccid part of TM

where chorda tympani nerve crosses

A

Neck of Malleues

53
Q

What is the characteristic of handle of malleus?

A

embedded in TM

where tendon of tensor tympani inserts

54
Q

3 parts of Malleus

A

Head,Neck, Handle

55
Q

3 parts of Incus

A

1]Body
2]Long process
3]Short process
4]Lenticular process

56
Q

Artic w/ head of malleus

A

Body of incus

57
Q

Artic w/ stapes

A

Lonfg process

58
Q

Connected to tympanic cavity by a ligament

A

Short process

59
Q

Artic w/ head of stapes

A

Lenticular proceess

60
Q

Smallest ear bone

A

Stapes

61
Q

Parts of Stapes

A

Base and HEad

62
Q

fits into oval window

A

Base of stapes

63
Q

artic w/ lenticular proc of incus

A

head of stapes

64
Q

Muscles Moving the Ossicles and Tympanic Membrane

A

Tensor tympani

Stapedius

65
Q
  • 2 cm long muscle
A

Tensor tympani

66
Q

Originates from:

  • cartilaginous part of auditory tube
  • greater wing of sphenoid bone
  • petrous part of temp bone
A

Tensor tynpani

67
Q

FUnction of Tensor tympanu

A

pulls handle of malleus thus tenses TM
reduces amplitude of oscillation
prevents damage to int ear when exposed to loud sounds

68
Q

Insertion of tensor tympani

A

Handle of Malleus

69
Q

Innervation of T.tympani

A

Mandibular nerve CN V3

70
Q

Muscle that:
Reduces oscillatory range
Prevents excessive movement of stapes

A

Stapedius

71
Q

Inserts to Neck of stapes

A

Stapedius

72
Q

NS of stapedius

A

Nerve to stapedius [CN VII]

73
Q

-pyramidal eminence origin

A

Stapedius

74
Q

Contains the vestibulocochlear organ

Conc w/ reception of sound and maintenance of balance

A

Inner ear

75
Q

Compositiion of inner ear

A

Consists of sacs and ducts of membranous labyrinth

76
Q

Location of inner ear

A

petrous part of temporalbone

77
Q

What does the membranous system contain

A

endolymph and end organs for hearing and balance

78
Q

What structure is:
surrounded by perilymph
- suspended within bony labyrinth

A

Membranous labyrinth

79
Q

Coposirion of BONY LABYRINTH

A

Composed of:

  1. Cochlea
  2. Vestibule
  3. Semicircular canals
80
Q

Shell like

Contains the cochlear duct

A

cochlea

81
Q

Parts of cochlea

A

Parts:

  1. Cupula
  2. Osseous spiral lamina
  3. Basilar membr
  4. Spiral ganglion-
  5. Organ of Corti
  6. Scala vestibuli-
  7. Scala tympani –
82
Q

What is the CUPULA

A

apex of cochlea

83
Q

shelf of bone of cochlea

A

Osseous spirallamina

84
Q

att to osl

A

Basilar membrane

85
Q

conc w/ auditory perception

A

Organ of Corti

86
Q

Scala vestibuli

A

conc w/ auditory perception

87
Q

Scala tympani of cochlea is related to?

A

related to tympanic cavity at fenestra cochlea

88
Q

Oval bony chamber

About 5 mm

A

Vestibule

89
Q

Contains utricle and saccule , w/c are parts of balancing apparatus

A

Vestibule

90
Q

The vestibule is continuous with

A

Continuous:

  1. Anteriorly w/ cochlea
  2. Posteriorly w/ SCC
91
Q

Bony canals w/c open into vestibule

Set at right angles to each other

A

Semicircular canals

92
Q

How many semicircular canals are there

A

3
Anterior
Posterior
Lateral

93
Q

True or false of the Semicirclar Canals
Forms 2/3 of a circle
About 1.5 mm diam except at swelling called ampulla

A

TRUE

94
Q

Sacs and ducts in cavities of bony labyrinth

Follows the form of bony labyrinth but smaller

A

Membranous Labyrinth

95
Q

Contains watery fluid, endolymph

A

Membranous Labyrinth

96
Q

3 parts of membranous labyrinth

A

1] utricle and saccule
2] 3 semicircular ducts
3] cochlear duct

97
Q

Dilatations

With a specialized area of sensory epithelium,macula

A

Utricle and Saccule

98
Q

static organs for signaling position of the head in space

A

Macula

99
Q

2 types of macula

A

Macula utriculi – in utricle

Macula sacculi – in saccule

100
Q

extensions of semicircular ducts which is a sensory area

A

crista ampullaris

101
Q

True or false:

Hairs of cristae are supplied by primary sensory neurons whose cell bodies are in audiory ganglion

A

false

Hairs of cristae are supplied by primary sensory neurons whose cell bodies are in vestibular ganglion

102
Q

Spiral, blind tube firmly fixed to cochlear canal by spiral ligament

A

Cochlear Duct

103
Q

Parts of cochlear duct

A

Vestibular memb = roof
Basilar memb = floor
Spiral organ [of Corti] = receptor of auditory stimuli

104
Q

= contains hair cells that respond to vibrations induced in the endolymph by sound waves

A

Spiral organ or corti

105
Q

Trace the counterparts of cochlea, SC canal and Vestibule which is bony membranous and sensory organ

A

Bony Memb Sense organ
Cochlea  Cochlear duct Organ of Corti
SC canal SC duct  Crista terminalis
Vestibule Utricle/Saccule Macula

106
Q

Narrow canal
Runs laterally for about 1 cm
Within petrous part of temporal bone

A

Internal Acoustic Meatus

107
Q

True or false:
The Interan Acoustic MEatuis is open laterally by a thin, perforated plate of bone that separates it from internal ear
Through his plate pass CN 6, and 7

A

False:
Closed laterally by a thin, perforated plate of bone that separates it from internal ear
Through his plate pass CN VII, VIII

108
Q

What divides near lateral end of IAM into anterior cochlear portion and posterior vestibular portion

A

Vestibulocochlear n

109
Q

Trace Pathway of Sound Conduction

A 
1Auricle
2 External acoustic meatus
3 Tympanic membrane
4 Ossicles [malleus,incus,stapes]
 5   Perilymph vibrations 
6Cochlea
7 CN VIII
8 Brain
110
Q

Conditio where there is Formation of spongy bone around stapes and fenestra vestibuli

A

Otosclerosis

111
Q

T or F
Otosclerosis may stop movement of base of stapes
and can cause deafness

A

TRUE

112
Q

Inflammation of middle ear

-May spread to tegmen tympani

A

Otitis Media

113
Q

True or False:

doesnt cause inflammation of meninges

A

Fasle:

-Causes inflammation of meninges

114
Q

Inflammation of external acoustic meatus

A

Otitis externa

115
Q

Does otitis externa cause pain?

A

YES

Movement of tragus causes pain bec cartilage in it is continuous w/ EAM

116
Q

Forms a route through which infections pass from nasopharynx to middle ear and is blocked by swelling of its mucous membrane

A

Auditory tuve

117
Q

In auditory tube,

There is Elevation of pressure in t.c., and retraction of t.m.hence Hearing is reduced

A

False
Lowering of pressure in t.c., retraction of t.m.
Hearing reduced

118
Q

Tympanic muscles have protective action

Dampen large vibrations of t.m. from loud noises

A

Hyperacusia

119
Q

What is paralyzed in hyperacusis

A

stapedius [lesion of CN VII results in excessive hearing

120
Q

Results from uninhibited movement of stapes

A

hyperacusis

121
Q

Spherical sinus
At temporal bone
Connected to tymp cavity by aditus

A

Mastoid antrum and cells

122
Q

What separates mastoid antrum and cells fromMIDDLE cranial foosaa

A

Separated from middle cranial fossa by tegmen tympani

123
Q

Result fr infection of middle ear

During surgery, ENT shld not injure facial nerve, Drill handlers, machine operators, tractor drivers

A

Mastoiditis

124
Q

Persistent exposure to loud sounds

Causes degenerative changes in spiral organ at base of cochlea

A

High tone deafness

125
Q

Injury to ear by an imbalance in pressure between surrounding air and air in middle ear
In fliers, divers, parachuters,

A

ototic barotrauma

Anatomy Module 8 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions