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
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
3
Q
Main arterial supply of the face and oral cavity
A
EXTERNAL CAROTID ARTERY
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
5
Q
Main vascular supply of the face
A
FACIAL ARTERY
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
7
Q
Main vascular supply of the teeth and jaws
A
Maxillary A
8
Q
Tooth #14 is supplies by what A?
A
PSAA and MSAA
9
Q
What branch is posterior superior alveolar A
A
Branch of maxillary A
10
Q
What branch is middle superior alveolar A
A
Branch of infraorbital A
11
Q
What branch is anterior superior alveolar A
A
Branch of infraorbital A
12
Q
What supplies PSAA
A
Max molars, premolars and buccal gingiva ( except molar 1st mesiobuccal )
13
Q
Arterial supply of MSAA
A
Premolar teeth and labial gingiva
14
Q
Arterial supply of PSAA
A
Anterior teeth including canines, labial gingiva
15
Q
Supplies he bone and mucosa of hard palate
A
Greater palatine A
16
Q
Anastomosis with nasopalatine A at the incisive foramen area
A
Greater palatine A
17
Q
Contributes to the other supply of mucosa of the soft palate
A
Lesser palatine A
18
Q
Alveolar branch of maxillary artery
A
Inferior alveolar artery
19
Q
Supplies mandibular teeth and lingual peridontum
A
Inferior alveolar A
20
Q
Passes through mandibular foramen (particularly covered by the lingula) to enter the mandibular canal
A
Inferior alveolar A
21
Q
Arterial supply of #31
A
Inferior alveolar A, incisive A
22
Q
Arterial supply below and between mandibular 1st premolar and 2nd premolar
A
It divides into two: mental A and incisive A
23
Q
Arterial supply below and between 1st premolar and incisive branch:
A
Incisive A or mental branch
24
Q
Terminal branch of inferior alveolar A that supplies the mandibular anterior teeth
A
Incisive A
25
Terminal branch of inferior alveolar A that supplies the labial gingiva of mandibular anterior teeth
Mental A
26
Exits the mental foramen ( below and between 1st and 2nd premolar or below the 2nd premolar )
Mental A
27
Supplies buccal gingiva of the lower teeth especially the mandibular molars (posteriorly)
Buccal A (direct branch of maxillary A )
28
Supplies the mylohyoid muscle
Mylohyoid a
29
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
Lingual artery
30
4 branch of lingual A
Suprahyoid Artery
Dorsal Lingual Artery
Sublingual Artery
Deep Lingual Artery
31
Main venous drainage of the face
Facial vein
32
Where does facial vein further drain to?
Facial vein-> to internal jugular vein -> brachiocephalic vein -> superior vena cava
33
Do facial vein have a valve
No
34
Main venous drainage of jaws and teeth
Maxillary vein
35
Terminal branch of maxillary vein
Pterygoid plexus -> maxillary vein -> internal jugular vein -> brachiocephalic vein -> seuperior vena cava
36
Main venous drainage of tongue, sublingual gland, oral mucosa of the floor of the mouth
Lingual vein
37
Dorsum and sides venous drainage of tongue
Lingual vein -> internal jugular vein
38
Venous drainage of ventral of tongue
Deep lingual vein -> FV/LV -> internal jugular vein
39
Branches of inferior alveolar A
2 branch
- mental A
- incisive A
- buccal A
- mylohyoid A
40
Two main nerves of oral and perioral area
Facial nerve
Trigeminal nerve
41
This nerve attaches to the lateral surface of the brainstem, between the pons and medulla oblongata
CN 7 facial nerve
42
This nerve consists of large motor and small sensory roots.
Facial nerve
- more motor than CN 5
43
Motor root - function innervates the muscle of the facial expression, posterior belly of digastric, styloid and stapedius muscles
Motor root of the facial nerve
44
Sensory root - function innervates the small area around concha of the tongue
Sensory root - facial nerve
45
Supplies the taste sensation of he anterior 2/3 of the tongue
Chorda tympani
46
Where does facial nerve exits
Exits from posterior canal fossa through the internal acoustic meatus
47
Where does facial nerve enters
from the facial canal of the temporal bone, so the petrous part of the temporal bone the facial bone enlarges as geniculate ganglion
48
Facial nerve -> internal acoustic meatus -> temporal bone -> geniculate ganglion -> stylomastoid foramen -> separates into 3
1. Greater petrosal
2. Nerve to stapedius
3. Chorda tympani
.
49
Is CN 5 mostly motor or sensory root?
CN 5 is mostly sensory
50
Branches of facial nerve before exiting the stylomastoid foramen
1. Great petrosal nerve
2. Nerve to stapedius
3 chorda tympani
51
Parasympathetic innervation of mucus gland ad lacrimal gland: innervates all gland above level of oral fissure
Greater petrosal nerve
52
Sensory; tongue; innervates all glands below the level of oral fissure
Chorda tympani
53
Branches of facial nerve before entering the parotid gland
1. Posterior auricular nerve
2. Digastric branch of facial nerve
54
Supplies the occipital belly of the occipitofrontalis muscle and posterior auricular muscle
Posterior auricular nerve
55
Supplies posterior belly of digastric and stylohyoid muscle
Digastric branch of facial
56
Nerve that is deep into the parotid gland
Neve to stylohyoid
57
Terminal branch of facial nerve
1. Temporal
2. Zygomatic
3. Buccal
4. Mandibular
5. Cervical
58
What supplies the temporal branch of facial
Frontalis,orbicularis oculi, corrugator supercilli
59
What muscles that innervates zygomatic branch of facial N
Zygomatic branch of facial nerve
60
Nerve that supplies orbicularis oris, buccinator and zygomaticus
Buccal branch of facial nerve
61
Nerve that supplies mentalis
Marginal mandibular branch
62
Nerve that supplies the platysma
Cervical branch of facial
63
Largest and fifth paired cranial nerve
Trigeminal nerve
64
General sensory nerve of the head and also has a motor function
Trigeminal nerve
65
Where does trigeminal nerve exits
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
Sensory root of trigeminal ganglion is located where?
Dural cave (trigeminal cave) meckel cave
67
Trigeminal ganglon is also called?
Gasserian or semilunar
68
Three main division of trigeminal nerve
Ophthalmic nerve
Maxillary nerve
Mandibular nerve
69
What nerve fibers does V1,2,3 consists of?
Sensory root fibers
70
Three branches of ophthlamic nerve
Nasociliary nerve
Frontal nerve
Lacrimal nerve
71
Nerve that leaves through superior orbital fissure and they are purely sensory
Ophthalmic nerve
72
What nerve has a pure sensory root
Ophthalmic nerve
73
Nerve that leaves cranial cavity through foramen rotundum
Maxillary nerve
74
A nerve that is purely sensory to mid third of face
Maxillary nerve
75
Branches of maxillary nerve
Middle meningeal branch
Pharyngeal branch
Nasal
Lesser palatine
Greater palatine
Nasopalatine
76
Direct branch of maxillary nerve
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
Terminal branch of anterior superior alveolar nerve
Palpebral branch and nasal branch ( not sure if tama ba)
78
Nerve supply of anterior superior alveolar nerve
Upper anterior teeth and buccal gingiva - max anterior (13-23)
79
Nerve supply of the middle superior alveolar nerve
Upper premolars and mesiobuccal root of 1st molars and buccal gingiva and buccal bone
80
Nerve supply of posterior superior alveolar nerve
All upper molars except mesiobuccal root of 1st molar and buccal gingiva (16-18)
81
Nerve supply os nasopalatine nerve (NPN)
Supplies the palatal gingiva and bone of all the upper anterior teeth (13 - 23) palatal mucosa from canine
82
Nerve supply of greater palatine nerve (GPN)
Supplies palatal gingiva and bone of all posterior teeth on one side ( 14 - 28 , 24 - 28 ) palatal mucosa to premolars
83
Lesser palatine nerve (LPN)
Additional nerve supply to soft palate
84
what is the innervation of 23
Left anterior superior alveolar nerve
85
Innveration of 16
Right middle superior alveolar nerve, right posterior superior alveolar nerve and greater palatine nerve
86
Biggest motor nerve of the trigeminal nerve
Mandibular nerve
87
Where does the mandibular nerve leaves the foramen
Foramen ovale
88
Sensory and motor innervation to lower third of the face
Mandibular nerve
89
Main/direct branch of mandibular nerve
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
Branches of inferior alveolar nerve
Nerve to mylohyoid - motor
Incisive, mental - sensory
91
The nerves that we will focus on in mandibular nerve
Buccal nerve and inferior alveolar nerve
92
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
Buccal nerve
93
A branch of V3 that has more sensory but lesser mtor (nerve to mylohyoid). Supplies lower molars, 2nd premolars and associated labial gingiva
Inferior alveolar nerve
94
Branch of incisive and mental nerve of V3
Mental nerve
Incisive nerve
Lingual nerve
95
Branch of inferior alveolar nerve that exits through metal foramen - supplies the lower lip and chin
Mental nerve
96
Terminal branch of inferior alveolar nerve that supplies first premolar, incisor, canine and related labial and buccal gingiva
Incisive nerve
97
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.
Lingual nerve
98
Innervation of tongue
Sensory and motor nerves:
Sensory:
- lingual nerve and chorda tympani (anterior 2/3)
- glossopharyngeal (posterior 1/3)
Motor:
- hypoglossal nerve CN 12
99
Lymphatic vessels from the teth and gingivae drain mainly into:
Submandibular, submental and deep cervical nodes
100
Submandibular nodes -> deep cervical lymph node
Iyang pathway
101
A lymph that is inferior to the body of mandible, drains structures along the path of facial artery: foread, gingiva, teeth and tongue
Submandibular nodes
102
Periapical infection on tooth 26: whatlymphatic groups are tender?
Submandibular node and deep cervical node
Why?
Because the submandibular nodes further drains to deep cervical node
103
A lymph node that is anterior and posterior to the chin
Submental nodes
104
A node that drains the center part of the lower lip, the chin, the floor of the mouth and the lower incisor teeth
Submental node
105
Pathway of submental node
Submental -> submandibular -> deep cervical
106
Infection in tooth 32: what is the pathway of the node infected?
Submental -> submandibular -> deep cervical
107
Nerve block 41
Lingual nerve , inferior alveolar nerve
108
Nerve block 44
Right IAN, R lingual
109
Nerve block 45
Right buccal N
