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ANAT3004 LECTURES > WEEK 5 - FACE > Flashcards

WEEK 5 - FACE Flashcards

1
Q

list the muscles of the forehead

A
  • frontal belly of occipitalfrontalis
  • epicranial aponeurosis
  • corrugator supercilli
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2
Q

list the muscles of the eye

A
  • orbicularis oculi
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3
Q

list the muscles of the nose

A
  • nasalis
  • procerus
  • levator labii superioris alaeque nasi
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4
Q

list the seven muscles of the mouth which insert into the MODIOULUS

A
  • zygomaticus major
  • platysma
  • rissorius
  • levator anguli oris
  • depressor anguli oris
  • orbicularis oris
  • buccinator
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5
Q

list the muscles that lift the LIP UP

A
  • levator labii superioris alaeque nasii
  • levator labii superioris
  • zygomatic minor
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6
Q

list the muscles that depress the LIP DOWN

A
  • depressor labii inferioris
  • mentalis
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7
Q

purpose of the modiolus

A
  • moves the corners of the mouth
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8
Q

where does the fat pads lie

A

between zygomaticus major, levator anguli oris and buccinator

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9
Q

what passes through the buccal fat pad

A
  • parotid duct
  • sensory buccal nerve
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10
Q

where does the buccal fat pad extend along and lie between

A

extends along: parotid duct
lies between: temporalis fascia and muscle

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11
Q

where does the malar fat pad lie

A
  • below orbicularis oculi
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12
Q

where does the malar fat pad extend to

A
  • corners of the mouth
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13
Q

where does the infraorbital fat pad lie

A

deep to orbicularis oculi

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14
Q

where does the submental/submandibular fat pad lie

A

below the body of the mandible

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15
Q

list the 5 layers of the scalp

A

S: skin
C: cutaneous tissue
A: aponeurosis
L: loose aeoral tissue
P: periosteum

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16
Q

motor innervation of the face

A
  • facial nerve
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17
Q

sensory innervation of the face

A

trigeminal nerve
all three branches

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18
Q

what is the forehead, eyes and nose innervated by

A
  • temporal
  • zygomatic
  • buccal branches
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19
Q

what is lips, cheeks and chin innervated by

A
  • zygomatic, buccal and mandibular branches
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20
Q

where do the five terminal branches of the facial nerve emerge from

A

parotid gland - facial canal

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21
Q

where does the temporal branch of facial nerve exit from

A

superior border of the parotid gland
supplies: temple, forehead and supraorbital

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22
Q

where does zygomatic branches emerges from

A

anterosuperior border of the parotid gland
supplies: infra-orbital, lateral nasal area and upper lip

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23
Q

where does buccal branches emerges from

A
  • anterior border of parotid gland
    supplies: muscles in the cheek, upper lip and corner of the mouth
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24
Q

where does marginal mandibular branch emerge from

A

anterioinferior border of parotid gland
supplies: lower lip and chinw

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25
Q

where does cervical branch emerge from

A

inferior border of the parotid gland to supply platysma

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26
Q

where does the ophthalmic nerve exits the skull through

A

superior orbital fissure and enters the orbit

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27
Q

branches of the ophthalmic nerve that innervates the face

A
  • supraorbital
  • supratrochlear
  • infratrochlear
  • lacrimal
  • external nasal
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28
Q

where does maxillary nerve exits the skull through

A

foramen rotundum

29
Q

branches of the maxillary nerve that innervates the face

A
  • zygomaticotemporal
  • zygomaticofacial
  • infraorbital
30
Q

where does the mandibular nerve exit the skull through

A

foramen ovale

31
Q

branches of the mandibular nerve that innervate the face

A

auriculotemporal nerve
- long sensory buccal nerve
- mental nerve

32
Q

location of the parotid gland

A

lateral to the ramus of the mandible and massetter muscle and also between mandible and SCM

33
Q

which structures are medial to the parotid gland and seperated from it by styloid muscles

A
  • internal jugular vein
  • internal carotid artery
  • vagus nerve
34
Q

what is the parotid gland derived from

A

deep cervical fascia

35
Q

what is the superficial part of the parotid gland attached to

A
  • zygomatic major
  • mandible
  • tympanic plate
36
Q

what is the thickened part of the parotid gland attached to

A
  • styloid process
  • medial side of angle of mandible
  • forms the stylomandibular ligament
37
Q

parotid gland innervation

A

receives both sensory and autonomic innervation

38
Q

what is general sensory innervation to the parotid gland received by

A

auriculotemporal nerve

39
Q

what is the auriculotemporal nerve division of

A
  • trigeminal nerve V3
    with some parasympathetic fibres from glossopharyngeal nerve
40
Q

what does parasympathetic of parotid gland do

A

produces saliva
- glossopharyngeal origin via auriculotemporal nerve (hitchhiker)

41
Q

sympathetic parotid gland

A

inhibits saliva secretion
from external carotid plexus

42
Q

sensory of parotid gland

A

greater auricular nerve

43
Q

blood supply of parotid gland

A
  • posterior auricular artery
  • superficial temporal artery
  • transverse facial artery
44
Q

venous drainage of parotid gland

A

retromandibular vein

45
Q

where does the parotid duct leave vi

A

anterior border

46
Q

where does the parotid duct cross

A

superficial surface of massetter

47
Q

what does the parotid duct pierce into

A

buccinator

48
Q

where does parotid duct empties into

A

vestibule of oral cavity between cheeks and teeth above 2nd maxillary molar
= parotid papilla

49
Q

deep structures of the parotid gland

A
  • external carotid artery
    enters: posteromedial surface of parotid gland and divides within the gland to form maxillary artery
  • superficial temporal artery > transverse facial artery
  • posterior auricular artery may arise
50
Q

intermediate structures of the parotid gland

A
  • superficial temporal vein and maxillary vein = retromandibular vein
    divides into the gland into posterior and anterior branches
51
Q

superficial structures of parotid gland

A
  • facial nerve
    does NOT innervate the parotid
52
Q

how many roots does the facial nerve have

A

2
- larger motor root
- smaller sensory root

53
Q

motor root of facial nerve

A

sends fibres to one muscle in the middle ear (stapedius)
then muscles in the face, scalp, auricles and outer neck

54
Q

sensory root of the facial nerve

A

termed nervus intermedius - sensory and parasympathetic

sensory
- taste from anterior 2/3 of tongue
- parasympathetic > produces secretion

55
Q

what does the facial nerve travel with

A

vestibulocochlear
nervus intermedius
pass through facial canal

56
Q

where do the facial nerve, nervus intermedius and vestibulocochlear enter

A

internal acoustic meatus

57
Q

does the facial nerve and nervus intermedius seperate from vestibulocochlear nerve and where do they enter

A

YES they do and enter facial canal
horizontal plane above vestibule of inner ear

58
Q

where does the facial nerve then bend

A

at the geniculate ganglion
sensory ganglion

59
Q

where do sensory fibres of facial nerve lie

A

geniculate ganglion

60
Q

do parasympathetic fibres pass through geniculate ganglion

A

yes but they do no synapse

61
Q

what does the vertical part of the facial nerve within canl gives off to

A

motor stapedius nerve

62
Q

where does the special sensory chorda tympani nerve leaves the facial nerve via

A

just above the stylomastoid foramen where the facial nerve emerges from the skuull

63
Q

origin of chorda tympani

A

arches upwards across the posterior wall of middle ear, across the upper part of tympanic membrane then into bone again to emerge from the petrotympanic fissure

64
Q

what does the chorda tympani join with

A

lingual nerve deep to the lateral pterygoid muscle

65
Q

function of chorda tympani

A

taste from anterior tongue
- carries parasympathetic fibres to submandibular gland sublingual glands

66
Q

where does the facial nerve emerge from

A

stylomastoid foramen

67
Q

where does the facial nerve curve medially from

A

posterior auricular nerve
- small branches to the posterior belly of digastric muscle and stylohyoid muscle

68
Q

where does the facial nerve then enter after curving

A

posterolateral parotid and divides within the gland to form cutaneous branches to muscles of face

69
Q
A

ANAT3004 LECTURES (12 decks)

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