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Oral Phy > Oral And Perioral: Arterial Supply, Venous Drainage, Innervation And Lymphatics > Flashcards

Oral And Perioral: Arterial Supply, Venous Drainage, Innervation And Lymphatics Flashcards

1
Q

Where does the arterial supply from the heart starts

A

Heart -> ascending aorta -> aortic arch

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2
Q

Branch of aortic arch

A

Anteriorly: brachiocephalic trunk -> R common carotid -> R subclavian

Middle: L common carotid -> L internal and external carotid A

Posteriorly: L subclavian A -> L vertebral A

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3
Q

Main arterial supply of the face and oral cavity

A

EXTERNAL CAROTID ARTERY

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4
Q

Branches of external carotid artery

A

Some Anatomist Like Freaking Out Poor Medical Students

Superior thyroid A
Ascending pharyngeal A
Lingual A
Facial A
Occipital A
Posterior auricular A
Maxillary A
Superficial temporal A

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5
Q

Main vascular supply of the face

A

FACIAL ARTERY

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6
Q

Branches of facial artery

A

AGA PLS SIT

Ascending Palatine A
Glandular A
Angular A
Premasseteric A
Lateral nasal A
Submental
Superior Labial A
Inferior Labial A
Tonsilar

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7
Q

Main vascular supply of the teeth and jaws

A

Maxillary A

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8
Q

Tooth #14 is supplies by what A?

A

PSAA and MSAA

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9
Q

What branch is posterior superior alveolar A

A

Branch of maxillary A

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10
Q

What branch is middle superior alveolar A

A

Branch of infraorbital A

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11
Q

What branch is anterior superior alveolar A

A

Branch of infraorbital A

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12
Q

What supplies PSAA

A

Max molars, premolars and buccal gingiva ( except molar 1st mesiobuccal )

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13
Q

Arterial supply of MSAA

A

Premolar teeth and labial gingiva

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14
Q

Arterial supply of PSAA

A

Anterior teeth including canines, labial gingiva

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15
Q

Supplies he bone and mucosa of hard palate

A

Greater palatine A

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16
Q

Anastomosis with nasopalatine A at the incisive foramen area

A

Greater palatine A

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17
Q

Contributes to the other supply of mucosa of the soft palate

A

Lesser palatine A

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18
Q

Alveolar branch of maxillary artery

A

Inferior alveolar artery

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19
Q

Supplies mandibular teeth and lingual peridontum

A

Inferior alveolar A

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20
Q

Passes through mandibular foramen (particularly covered by the lingula) to enter the mandibular canal

A

Inferior alveolar A

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21
Q

Arterial supply of #31

A

Inferior alveolar A, incisive A

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22
Q

Arterial supply below and between mandibular 1st premolar and 2nd premolar

A

It divides into two: mental A and incisive A

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23
Q

Arterial supply below and between 1st premolar and incisive branch:

A

Incisive A or mental branch

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24
Q

Terminal branch of inferior alveolar A that supplies the mandibular anterior teeth

A

Incisive A

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25
Q

Terminal branch of inferior alveolar A that supplies the labial gingiva of mandibular anterior teeth

A

Mental A

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26
Q

Exits the mental foramen ( below and between 1st and 2nd premolar or below the 2nd premolar )

A

Mental A

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27
Q

Supplies buccal gingiva of the lower teeth especially the mandibular molars (posteriorly)

A

Buccal A (direct branch of maxillary A )

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28
Q

Supplies the mylohyoid muscle

A

Mylohyoid a

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29
Q

Branch of ECA that supplies the intrinsic muscle of the tongue, sublingual gland, and oral mucosa of the floor of the mouth, lingual mucosa & bone of mandible

A

Lingual artery

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30
Q

4 branch of lingual A

A

Suprahyoid Artery
Dorsal Lingual Artery
Sublingual Artery
Deep Lingual Artery

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31
Q

Main venous drainage of the face

A

Facial vein

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32
Q

Where does facial vein further drain to?

A

Facial vein-> to internal jugular vein -> brachiocephalic vein -> superior vena cava

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33
Q

Do facial vein have a valve

A

No

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34
Q

Main venous drainage of jaws and teeth

A

Maxillary vein

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35
Q

Terminal branch of maxillary vein

A

Pterygoid plexus -> maxillary vein -> internal jugular vein -> brachiocephalic vein -> seuperior vena cava

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36
Q

Main venous drainage of tongue, sublingual gland, oral mucosa of the floor of the mouth

A

Lingual vein

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37
Q

Dorsum and sides venous drainage of tongue

A

Lingual vein -> internal jugular vein

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38
Q

Venous drainage of ventral of tongue

A

Deep lingual vein -> FV/LV -> internal jugular vein

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39
Q

Branches of inferior alveolar A

A

2 branch
- mental A
- incisive A

 - buccal A
 - mylohyoid A
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40
Q

Two main nerves of oral and perioral area

A

Facial nerve
Trigeminal nerve

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41
Q

This nerve attaches to the lateral surface of the brainstem, between the pons and medulla oblongata

A

CN 7 facial nerve

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42
Q

This nerve consists of large motor and small sensory roots.

A

Facial nerve
- more motor than CN 5

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43
Q

Motor root - function innervates the muscle of the facial expression, posterior belly of digastric, styloid and stapedius muscles

A

Motor root of the facial nerve

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44
Q

Sensory root - function innervates the small area around concha of the tongue

A

Sensory root - facial nerve

45
Q

Supplies the taste sensation of he anterior 2/3 of the tongue

A

Chorda tympani

46
Q

Where does facial nerve exits

A

Exits from posterior canal fossa through the internal acoustic meatus

47
Q

Where does facial nerve enters

A

from the facial canal of the temporal bone, so the petrous part of the temporal bone the facial bone enlarges as geniculate ganglion

48
Q

Facial nerve -> internal acoustic meatus -> temporal bone -> geniculate ganglion -> stylomastoid foramen -> separates into 3

  1. Greater petrosal
  2. Nerve to stapedius
  3. Chorda tympani
A

.

49
Q

Is CN 5 mostly motor or sensory root?

A

CN 5 is mostly sensory

50
Q

Branches of facial nerve before exiting the stylomastoid foramen

A
  1. Great petrosal nerve
  2. Nerve to stapedius
    3 chorda tympani
51
Q

Parasympathetic innervation of mucus gland ad lacrimal gland: innervates all gland above level of oral fissure

A

Greater petrosal nerve

52
Q

Sensory; tongue; innervates all glands below the level of oral fissure

A

Chorda tympani

53
Q

Branches of facial nerve before entering the parotid gland

A
  1. Posterior auricular nerve
  2. Digastric branch of facial nerve
54
Q

Supplies the occipital belly of the occipitofrontalis muscle and posterior auricular muscle

A

Posterior auricular nerve

55
Q

Supplies posterior belly of digastric and stylohyoid muscle

A

Digastric branch of facial

56
Q

Nerve that is deep into the parotid gland

A

Neve to stylohyoid

57
Q

Terminal branch of facial nerve

A
  1. Temporal
  2. Zygomatic
  3. Buccal
  4. Mandibular
  5. Cervical
58
Q

What supplies the temporal branch of facial

A

Frontalis,orbicularis oculi, corrugator supercilli

59
Q

What muscles that innervates zygomatic branch of facial N

A

Zygomatic branch of facial nerve

60
Q

Nerve that supplies orbicularis oris, buccinator and zygomaticus

A

Buccal branch of facial nerve

61
Q

Nerve that supplies mentalis

A

Marginal mandibular branch

62
Q

Nerve that supplies the platysma

A

Cervical branch of facial

63
Q

Largest and fifth paired cranial nerve

A

Trigeminal nerve

64
Q

General sensory nerve of the head and also has a motor function

A

Trigeminal nerve

65
Q

Where does trigeminal nerve exits

A

Exits: anterolateral surface of the pons (sensory and small motor)
Exits: at the middle cranial fosse; before it exits it expands as trigeminal ganglion

66
Q

Sensory root of trigeminal ganglion is located where?

A

Dural cave (trigeminal cave) meckel cave

67
Q

Trigeminal ganglon is also called?

A

Gasserian or semilunar

68
Q

Three main division of trigeminal nerve

A

Ophthalmic nerve
Maxillary nerve
Mandibular nerve

69
Q

What nerve fibers does V1,2,3 consists of?

A

Sensory root fibers

70
Q

Three branches of ophthlamic nerve

A

Nasociliary nerve
Frontal nerve
Lacrimal nerve

71
Q

Nerve that leaves through superior orbital fissure and they are purely sensory

A

Ophthalmic nerve

72
Q

What nerve has a pure sensory root

A

Ophthalmic nerve

73
Q

Nerve that leaves cranial cavity through foramen rotundum

A

Maxillary nerve

74
Q

A nerve that is purely sensory to mid third of face

A

Maxillary nerve

75
Q

Branches of maxillary nerve

A

Middle meningeal branch
Pharyngeal branch
Nasal
Lesser palatine
Greater palatine
Nasopalatine

76
Q

Direct branch of maxillary nerve

A

Posterior superior alveolar nerve
Zygomatic branes to zygomaticofacial and zygomaticotemporal
Infraorbital nerve

Sa gen ana book:
Z zygomaticofacial
I infraorbital - middle superior alveolar nerve , anterior superior alveolar nerve
Z zygomaticotemporal

77
Q

Terminal branch of anterior superior alveolar nerve

A

Palpebral branch and nasal branch ( not sure if tama ba)

78
Q

Nerve supply of anterior superior alveolar nerve

A

Upper anterior teeth and buccal gingiva - max anterior (13-23)

79
Q

Nerve supply of the middle superior alveolar nerve

A

Upper premolars and mesiobuccal root of 1st molars and buccal gingiva and buccal bone

80
Q

Nerve supply of posterior superior alveolar nerve

A

All upper molars except mesiobuccal root of 1st molar and buccal gingiva (16-18)

81
Q

Nerve supply os nasopalatine nerve (NPN)

A

Supplies the palatal gingiva and bone of all the upper anterior teeth (13 - 23) palatal mucosa from canine

82
Q

Nerve supply of greater palatine nerve (GPN)

A

Supplies palatal gingiva and bone of all posterior teeth on one side ( 14 - 28 , 24 - 28 ) palatal mucosa to premolars

83
Q

Lesser palatine nerve (LPN)

A

Additional nerve supply to soft palate

84
Q

what is the innervation of 23

A

Left anterior superior alveolar nerve

85
Q

Innveration of 16

A

Right middle superior alveolar nerve, right posterior superior alveolar nerve and greater palatine nerve

86
Q

Biggest motor nerve of the trigeminal nerve

A

Mandibular nerve

87
Q

Where does the mandibular nerve leaves the foramen

A

Foramen ovale

88
Q

Sensory and motor innervation to lower third of the face

A

Mandibular nerve

89
Q

Main/direct branch of mandibular nerve

A

1 meningeal nerve
2 nerve to medial pterygoid
3 anterior truck
- consists of deep temporal N, buccal N, masseteric N, nerve to lateral pterygoid
4 posterior trunk
- auriculotemporal N, lingual N, and inferior alveolar N

90
Q

Branches of inferior alveolar nerve

A

Nerve to mylohyoid - motor
Incisive, mental - sensory

91
Q

The nerves that we will focus on in mandibular nerve

A

Buccal nerve and inferior alveolar nerve

92
Q

A branch of V3 that has a greater sensory but less motor. (Lateral pterygoid muscle and temporalis muscle). Adjacent: skin and oral mucosa and the buccal gingiva of lower molars

A

Buccal nerve

93
Q

A branch of V3 that has more sensory but lesser mtor (nerve to mylohyoid). Supplies lower molars, 2nd premolars and associated labial gingiva

A

Inferior alveolar nerve

94
Q

Branch of incisive and mental nerve of V3

A

Mental nerve
Incisive nerve
Lingual nerve

95
Q

Branch of inferior alveolar nerve that exits through metal foramen - supplies the lower lip and chin

A

Mental nerve

96
Q

Terminal branch of inferior alveolar nerve that supplies first premolar, incisor, canine and related labial and buccal gingiva

A

Incisive nerve

97
Q

Major sensory brach of V3 that supplies the anterior 2/3 of the tongue with chorda tympani of CN VII, oral mucosa on the floor of the oral cavity, salivary gland and lingual gingivae, associated with lower teeth.

A

Lingual nerve

98
Q

Innervation of tongue
Sensory and motor nerves:

A

Sensory:
- lingual nerve and chorda tympani (anterior 2/3)
- glossopharyngeal (posterior 1/3)

Motor:
- hypoglossal nerve CN 12

99
Q

Lymphatic vessels from the teth and gingivae drain mainly into:

A

Submandibular, submental and deep cervical nodes

100
Q

Submandibular nodes -> deep cervical lymph node

A

Iyang pathway

101
Q

A lymph that is inferior to the body of mandible, drains structures along the path of facial artery: foread, gingiva, teeth and tongue

A

Submandibular nodes

102
Q

Periapical infection on tooth 26: whatlymphatic groups are tender?

A

Submandibular node and deep cervical node
Why?
Because the submandibular nodes further drains to deep cervical node

103
Q

A lymph node that is anterior and posterior to the chin

A

Submental nodes

104
Q

A node that drains the center part of the lower lip, the chin, the floor of the mouth and the lower incisor teeth

A

Submental node

105
Q

Pathway of submental node

A

Submental -> submandibular -> deep cervical

106
Q

Infection in tooth 32: what is the pathway of the node infected?

A

Submental -> submandibular -> deep cervical

107
Q

Nerve block 41

A

Lingual nerve , inferior alveolar nerve

108
Q

Nerve block 44

A

Right IAN, R lingual

109
Q

Nerve block 45

A

Right buccal N

Oral Phy (8 decks)

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