Face Flashcards
The area common to scalp and face
Forehead
The areas of face covered by deep fascia
Parotid gland and buccinator muscle
Mention arteries of face with origin
ECA(main): Superficial temporal & facial
ICA: supraorbital & -trochlear
From maxillary: buccal, infra-orbital & mental
Mention the landmark at which the facial art pierces the deep fascia, and that at which it ends
Antero-inferior angle of masseter
Medial angle of the eye
GR: facial art has tortuous course
To permit free movement of mandible, lips & cheeks
Mention the branches of facial art
Sup & inf labial
Lateral nasal
Angular
Unnamed muscular branches
Mention an anastomosis between ICA & ECA in face
Anast. between facial art & dorsal nasal art which is a branch of opthalamic, this is the termination of facial art
How is facial vein connected to cavernous sinus
- It is connected to sup opthalamic vein that drains into the sinus
- It is connected to pterygoid venous plexus by deep facial vein, this plexus connects to sinus by three emissary veins
Mention parts of dangerous area of face
Upper lip, nose, medial angle of eye
Mention areas of face not supplied by trigeminal nerve (sens.) and their supply
Small area over angle of mandible and capsule of parotid gland
Greater auricular (C2&3)
Mention sensory nerves of the face & their origin
- Ophthalamic: supratrochlear, infratrochlear, supraorbital, external nasal, palpebral branch of lacrimal
- Maxillary: zygomaticotemporal, zygomaticofacial, infraorbital that gives palpebral, nasal & labial branches
- Mandibular: auriculotemporal, mental, buccal
Facial nerve leaves the skull through….
Stylomastoid foramen
Mention branches of facial nerve
In neck, post auricular and muscular to post belly of digastric & stylohyoid
Terminal branches: temporal, zygomatic, buccal, mandibular, cervical.
GR, incisions in the face should ne horizontal
Because the branches of facial nerve radiate outwards across the face, thus the incision is parallel to reduce the likelihood of cutting them.
Mention branches supplying
obicularis oculi muscle
Obicularis oris
Platysma
Temporal & zygomatic
Buccal
Cervical
All from facial nerve
Describe lymph drainage of face
Medial to facial art, submandibular LN
Lateral to facial art, parotid LN
Central part of lower lip & chin is drained by submental LN
The muscles of facial expression arise from …..
2nd pharyngeal arch
Functions of muscles of facial expression
- Act as sphincters or dilators to the openings of the face
- Produce facial expression
Mention part of orbicularis oculi with no lateral bony attachment
Orbital part
Mention parts of o.oculi muscle attached to medial palpebral ligament
Orbital & palpebral (origin)
Mention parts of o.oculi muscle attached to lat palpebral ligament
Palpebral & lacrimal (insertion)
Describe actions of orbicularis oculi muscle
Orbital: closely shut eye
Palpebral: gently shut eye & spread tears
Lacrimal: dilate lacrimal sac, help in flow of tears
Describe origin & insertion of middle fibers of buccinator
Originated from pterygomandibukar raphe
Its fibers decussate at the modiolus such that upper part is inserted in lower lip & vice versa
Each quadrant in orbicularis oris is formed of ….&….
Large Pars peripheralis & small pars marginalis
O.oris is formed if …. Segments
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