Dental Anatomy Superfical Face + Cranial Nerves

Front 1

Cutaneous Innervation of
the face,
Divisions+ main branches

Back 1

V1-Ophthalmic-supraorbital N
V2- Maxillary-infraorbital
V3- Mandibular-mental

Front 2

Branches of V1

Back 2

1. Supraorbital
2. Supratrochlear
3. Infratrochlear
4. External Nasal
5. Lacrimal

Front 3

Branches of V2

Back 3

1. Infraorbital
2. Zygomatictemperal
3. Zygomaticofacial

Front 4

Branches of V3

Back 4

1. Mental
2. Buccal
3. Auriculotemporal

Front 5

Clinical Note: Trigeminal Neuralgia:
Nerve?
Symptons?
Most common division?

Back 5

1. CNV
2. Sharp pain/paroxysm
3. V2>V3>V1

Front 6

Scalp Innervation:

Back 6

1. Supraorbital(V1)
2. zygomaticotemperoal(V2)
3. Auriculartemporal(V3)
4. Lesser Occipital(C2/C3)
5. Greater Occipital(C2)-->doral ramus

Front 7

Dermatomal Map
V1
V2
V3
C2
C3
C4

Back 7

V1: temporal-eye-edge of nose
V2-nose to lips
V3. Lips to chin
C2-ear-bottom neck
C3-neck
C4-lower

Front 8

Innervation of facial muscles?

Back 8

CVII

Front 9

Occiptalfrontalis

Back 9

Draw eye brows up(frontal belly)
Draws scalp back(occiptal belly)

Front 10

Obicularis Oris

Back 10

Palperbral:eyelids
Orbital: around eye
Closes eyes

Front 11

Corrugator Supercilli

Back 11

draws eyebrows medially and downwards

Front 12

Procerus

Back 12

Draws medial angle of eyebrows downwards

Front 13

Nasalis

Back 13

Compresses nasal aperature, Opens nostrils laterally

Front 14

Zygomatic Major

Back 14

Draws corner of mouth upwards

Front 15

Zygomatic Minor

Back 15

Draws upper lip upwards

Front 16

Obicularis Oris

Back 16

Closes lips, protrudes lips

Front 17

Mentalis

Back 17

Protrudes lower lip, raises lower lip

Front 18

Depressor labii inferiorius

Back 18

draws lower lip downwards

Front 19

Depressor Anguli oris

Back 19

draws corner of mouth downwards and laterally

Front 20

Buccinator

Back 20

keeps food on occlusal surface

Front 21

Risorious

Back 21

retracts corner of mouth

Front 22

Platysma

Back 22

Depresses lower jaw, tightens skin around neck

Front 23

Branches of the CNVII(facial),
where does it originate from?

Back 23

Temperoal, Zygomatic, Buccal, Mandibular, Cervical

stylomastoid foramen

Front 24

Clinical Note: Bells Palsy

Back 24

swelling of facial nerve near s

Front 25

Arteries of the face:
main branch

Back 25

External Carotid

Front 26

Branches of External Carotid

Back 26

1.Occipital
2.Superficial Temporal
3. Maxillary
4. Facial
5. Lingual
6. Superior Thyroid
7. Ascending pharyngeal

Front 27

Occiptal artery

Back 27

1. Occipital: hooks around hypoglossal nerve then posterior

Front 28

Superficial Temporal artery

Back 28

2.Superficial Temporal: Terminal Branch
3. Transverse facial branch: superior parotid

Front 29

Maxillary artery

Back 29

3. Maxillary: Terminal, goes deep to mandible to infratemproal fossa

Front 30

Facial artery

Back 30

Deep to mandible, courses around body.

Branches: Superior Labial
Inferior labial, Angular

Front 31

Arteries of the Scalp

Back 31

Supraorbital(ICA)
Superficial Temporal(ECA)
Occipital(ECA)

Front 32

External Carotid vs Internal

Back 32

External Anterior

Front 33

External Jugular vs. Internal

Back 33

External Posterior

Front 34

Branches of External Jugular Vein

Back 34

Retromandibular
superficial temporal
Maxillary

Front 35

External drains into..?

Back 35

subclavian

Front 36

Branches off the internal Carotid

Back 36

Facial

Front 37

Retromandibular

Back 37

connects maxillary and superfical temporal

Front 38

Maxillary

Back 38

Anastomoses with pterygoid plexus-->cavernous sinus INFECTION

Front 39

Facial

Back 39

common facial-->facial-->deep Facial-->pterygoid plexus
facial-->superior labii/inferior labii
Facial-->superior/inferior opthalmic, supraorbital, supratrochlear

Superior/inferior opthalmic leads to cavernus sinus

Front 40

Dangerous Triangle

Back 40

drainage into cavernous sinus

Front 41

SCALP

Back 41

Skin
Connective Tissue
Apeneurosis
Periosteum

Front 42

Skin

Back 42

Hair/follicles, lymphatics, arteries, veins

Front 43

Connective Tissue

Back 43

cutaneous nerves

Front 44

Aponerousis

Back 44

white tendon connecting frontal body and occiptal body of the

Front 45

3 layers SCA are? 4th?

Back 45

fused, 4th loose

Front 46

Periosteum

Back 46

is dense layer of connective tissue covering the bone

Front 47

Emissary vein

Back 47

Pass through bones of the calvaria(skull cap) to drain blood from the scalp into intra cranial venous sinuses

Front 48

Parotid Gland innvervations

Back 48

para/post from otic ganglion which run with auriculotemporal

Front 49

Which motor branches pierce the parotid?

Back 49

CNVII-temporal, zygomatic, buccal, mandibular, cervical

Front 50

Stensen's Duct

Back 50

crosses masseter, pierces buctinator opens into oral cavity opposite of 2nd molar

Front 51

Parotid Sheath?

Back 51

dense connective tissue continuous investing fascia

Front 52

Clinical Note: Mumps

Back 52

viral infection that causes inflammation and swelling of the parotid gland

Front 53

Clinical note Salivary Tumors

Back 53

occur in the parotid gland-->excision carefully

Front 54

Lymphatics groups

Back 54

1. Pericervical collar
2. superficial cervical nodes
3. deep cervical nodes

Front 55

Draining pattern of lymphatics?

Back 55

Superficial cervical, pericervical collar-->deep cervical-->right lymphatic/thoracic-->jxn internal jugular/subclavian veins

Front 56

Pericervical lymph nodes

Back 56

1. Parotid
2. Buccal
3. Submental
4. Submandibular
5. Occipital
6. Mastoid

Front 57

Superficial lymph nodes

Back 57

1. Anterior jugular
2. External jugular

Front 58

Deep Cervical Chain of nodes

Back 58

Surrounds jugular vein, deep to SCM

Front 59

Branchial Arch Development:
Where?
When?

Back 59

Neck/head region, also called pharyngeal
4-5 weeks

Front 60

Branchial Arch components

Back 60

1. part of aorta
2. cartilage
3. cranial nerve
4. certain muscles

Front 61

BA1

Back 61

CN5
muscles of mastication
anterior belly of digastric
mylohyoid
tensor villi palatini
tensor tympani

Front 62

BA2

Back 62

Facial nerve CNVII, facial exp, post. belly of digastric, sylohyoid, stapedius muscles

Front 63

BA3

Back 63

glossopharyngeal CN IV + stylopharygenous muscle

Front 64

BA 4/6

Back 64

Vagus nerve(CNX and CN XI via X fibers), muscles of palate, pharyxn, larynx