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ENT > Anatomy Revision > Flashcards

Anatomy Revision Flashcards

1
Q

where is the opening of the internal acoustic meatus

A

posterior cranial fossa

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2
Q

what is the adenoid closley related to

A

the eustachian tube

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3
Q

what duct is most likely to be damaged in a le fort 1 fracture

A

nasolacrimal duct

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4
Q

what is the aditus

A

the passageway to the mastoid antrum

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5
Q

what is the mastoid antrum

A

air space in the petrous part of the temporal bone

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6
Q

where does the sphenoid sinus drain to

A

the sphenoethmoidal recess

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7
Q

what fossa are the brains frontal lobes in

A

anterior fossa

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8
Q

what skull bone is shaped like a butterfly

A

sphenoid

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9
Q

what bone is the otic cavity in

A

temporal

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10
Q

where in otic cavity is the stapes

A

epitympanic recess

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11
Q

what controls the movement of the stapes

A

skeletal muscle- stapedius

nerve- CN VII (facial)

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12
Q

is the stapes in contact with the perilymph

A

yes via the oval window

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13
Q

what is the sensory innervation of the stapes

A

CN IX glossopharyngeal

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14
Q

where does lymph from the stapes drain to

A

throacic duct

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15
Q

what nerve has sensory ganglion in the geniculate ganglion in the petrous part of temporal bone

A

facial nerve

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16
Q

what nerve courses over the internal aspect of the tympanic membrane

A

chorda tympani

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17
Q

what nerve is the sensory supply to the skin over the inferior part of the external auditory meatus

A

vagus

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18
Q

what nerve is the sensory supply to the mucosa of the nasal cavity

A

maxillary CN V2

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19
Q

what nerve pathology is associated with subsequent falls

A

vestibular nerve

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20
Q

what 4 things are in the jugular foramen

A 
CN XI (accessory) 
CN X (vagus)
CN IX (glossopharyngeal)
internal jugular vein
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21
Q

what is the sensory innervation of the ear lobe

A

spinal nerve 2 and 3

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22
Q

what prevents the anterior dislocation of the tmj

A

zygomatic process

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23
Q

what bones is the hypoglossal canal a feature of

A

occipital bone

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24
Q

what canal transmits taste fibres from anterior 2/3rds of the tongue

A

facial canal

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25
Q

what part of the temporal bone articulates at the pterion

A

the squamous part

26
Q

where are the internal and external acoustic meatus’

A

in the petrous part of the temporal bone

27
Q

where does the antrum of the maxillary sinus drain to

A

the middle meatus

28
Q

where does the nasolacrimal duct drain to

A

inferior meatus

29
Q

what innervates the eustachian tube

A

glossopharyngeal nerve

30
Q

is the facial nerve a peripheral nerve

A

yes

31
Q

what are the different axons of the facial nerve

A

special sensory
sensory
motor
parasympathetic

32
Q

what connects to the brain stem at the junction between the pons and the medulla oblogate

A

cranial nerve CN VII and VIII

33
Q

what branch of facial nerve supplies taste to anterior 2/3rds of tongue

A

chorda tympani

34
Q

what is the crista galli

A

upper part of the perpendicular plate of the ethmoid bone

forms part of roof of nasal cavity

35
Q

what part of ethmoid bone is covered by respiratory mucosa

A

middle concha

36
Q

what is the aditus

A

passageway to mastoid antrum (air space in petrous temporal bone)

37
Q

what is the nerve supply to: stylopharyngeal, mucosa of the oropharynx + opening to eustachian tube + middle ear and medial side of tympanic membrane

A

CN IX

glossopharyngeal

38
Q

what is pierced by the parotid duct

A

buccinator

39
Q

what muscle of the palate is derived from the 1st pharyngeal arch

A

tensor veli palatini

40
Q

what muscle opens the jaw

A

lateral pterygoid

41
Q

what is the motor innervation of the tongue muscles

A

all hypoglossal expect palatoglossal (vagus)

42
Q 
name this muscle:
located within peritrachial layer of deep cervical fascia 
below C3
attaches between two hyaline cartilages 
not involved in whispering
A

arytenoid muscles

43
Q

what is the surface landmark for a circoid puncture

A

arch of cricoid

44
Q

what is the sensory nerve of the tonsilar sinus

A

CN IX

45
Q

what level is the thyroid cartilage

A

C5

46
Q

what level is the first palpable vertebrae

A

C7

47
Q

at what level does the trachea split

A

between T5-7

48
Q

what foramen does the internal carotid artery go

A

carotid canal

49
Q

what are the regional lymph nodes for the tip of the tongue

A

submental

50
Q

what is the sensory supply to the epiglottis mucosae

A

superior laryngeal

51
Q

what palate muscle contracts during nasal speech

A

palatopharyngeus

52
Q

can you palpate the carotid bifurcation

A

yes

53
Q

can you palpate the submandbular glands

A

yes

54
Q

what type of cartilage is the epiglottis

A

elastic

55
Q

what supply taste sensation to ant 2/3rds of the tongw

A

taste= chorda Tympani from facial

56
Q

what supplies general sensory to the ant 2/3rds of the tongue

A

V3

57
Q

what is the innervation of the laryngeal muscles

A

all recurrent laryngeal except the cricothyroid muscle

58
Q

what is the only abductor of the vocal cords

A

posterior cricoarytenoid

59
Q

what will the voice sound like in reinkes oedema

A

rough

60
Q

what will the voice sound like in left adductor palsy

A

very breathy (large gap in glottis)

61
Q

what will the voice sound like in left abductor palsy

A

normal but stridor on inspiration

62
Q

what does a stroboscopy do

A

slows down vocal fold mucosa movements

ENT (27 decks)

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