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Flashcards in Face Deck (13):
1

Cutaneous Innervation

1. CN V
2. Cutaneous branches of Cervical Plexus

2

Cutaneous Innervation - CN V

V1 - Ophthalmic - apex of nose, orbit, eyeball, forehead distribution
V2 - Maxillary - upper jaw (lip), ala of nose, anterior aspect of temporal region distribution
V3 - Mandibular - lower jaw (lip), anterior to auricle, temporal region distribution

3

Cutaneous Innervation - Cutaneous Branches of Cervical Plexus

Great Auricular (Ventral Rami of C2, C3) - skin of parotid bed and auricle distribution
Lesser Occipital (central ramus of C2) - skin of posterior auricle and skin behind the ear

4

Trigeminal Neuralgia

Sudden sharp pain causes patient to wince (tic)
Last 15 minutes or more
Most common in V2, then V3, and last V1

5

Muscles of Facial Expression
Origin
Insertion
Named By
Motor Innervation

Lie within the superficial fascia and take origin from fascia and bone
Inserts into the skin
Named by shape or function
Motor innervation by Facial Nerve CN VII)

6

Facial Nerve

Emerges from the stylomastoid foramen, then enters the parotid gland and branches into:
Temporal
Zygomatic
Buccal
Mandibular
Cervical
Posterior auricular branch to Occipitalis

7

Bells Palsy

Paralysis of the facial muscles
Sagging sad looking face when relaxed
Drooping eyelid, excessive tearing
Dribbling out side of mouth

8

Arterial Supply to the face

Facial
Superficial Temporal - Transverse Facial
Anastomoses - btw Internal and External Carotid branches

9

Venous Drainage

Facial Vein
Retromandibular Vein
NO VALVES IN THE VEINS OF THE FACE

10

Venous Drainage - Facial Ven

Medial angle of the eye, descends lateral to the artery, into the internal jugular vein

11

Venous Drainage - Retromandibular Vein

Union of superficial temporal vein and maxillary veins
Divides into anterior and posterior divisions as it descends into upper neck
- Anterior division joins facial vein and drains into IGV
- Posterior division joins post auricular vein to form EJV

12

Dangeroud Area of the face

Dural Venous SInuses
Pterygoid Venous Plexus
Ophthalmic Veins
Cavernous Sinuses
NO VALVES

13

Lymphatic Drainage

Lymph nodeds located in parotid and buccal regions of the face, otherwise there are no lymph nodes in face or scalp
All lymph vessels drain directly or indirectly into the deep cervical nodes located along the IJV