Face Scalp Parotid Flashcards
SCALP stands for:
Skin Connective Tissue Aponeurosis Loose CT Periosteum
scalp extends down to where?
includes forehead and supreorbital margins
which layers can move in the scalp
first three layers
aponeurosis attaches to 2 muscles
occipital and frontalis
3 reasons why scalp wounds bleed so much
- rich anastamoses between internal/external carotid
- scalp wounds gap
- fibrous septa restrict small artery constriction
once any laceration breaches loose CT what happens?
profuse bleeding
in the face, what layer do you not have compared to scalp?
loose CT
in the face layers, instead of aponeurosis there is?
facial muscles
muscles arise from? insert?
arise from bone of fascia
insert into skin of face
Face
spincters:
dilators:
orbicularis
depressor/levator
facial muscles arise from what?
2nd pharangeal arch
Anterior skin to front of ears innervated by?
trigeminal (CN V)
3 divisions of trigeminal:
opthalmic (V1)
maxillary (v2)
mandibular (V3)
posterior skin until behind ears innervated by?
dorsal rami of cervial nerves
C1 does which sensory innervation nerves?
None
what is trigeminal neuralgia?
intense period of facial pain
Trigeminal V1 goes through which orifice?
opthalmic
superior orbital fissure
Trigeminal V2 goes through which skull hole?
Maxillary
Foramen Rotundum
Trigeminal V3 goes through which skull hole?
Mandibular
Foramen Ovale
describe the facial nerve’s path
off of external carotid, tortuous and gives off branches to nose and face
describe the superficial temporal artery
comes off of external carotid artery
name branches of internal carotid for the face
supraorbital:
supratrochlear:
3 important branches of external carotid artery to head:
superifical temporal
posterior auricular
occipital
difference between facial vein vs. artery?
vein is straighter, less tortuous
risk of what with popping a pimple in the nose/upper lips areas?
thrombophlebitis of facial vein
there is a ring of lymph nodes at base of skull: 6 regions are:
submental submandibular preauricular parotid mastoid occipital
Location of parotid gland:
below zygomatic arch ant. to mastoid process/ear above angle of mandible posterior to masseter superficial to styloid process
parotid gland wrapped in? affected in which condition?
parotid fascia
affected in Mumps
trace the parotid gland salivary pathway to the mouth
emerges anterior border
onto masseter
turns medially, pierces buccinator
enters near second upper molar
name parotid gland layer superficial to deep
- cranial nerve VII:facial
- retromandibular vein
- external carotid artery
- scattered parotid lymph nodes
facial nerve exits skull where?
styloid mastoid foramen
what happens after facial nerve exits skull?
give off: posterior auricular occipitalis supply posterior belly digastric stylohyoid
after facial nerve enters parotid, what happens?
branches into a plexus called pes anserinus
name the 5 branches of facial nerve from top superior to inferior
Temporal Zygomatic Buccal Mandibular Cervical
retromandibular vein formed by things?
temporal and maxillary
external carotid artery divides into 2 big things
maxillary
superficial temporal
injury to facial nerve causes?
facial droop
most common cause of facial nerve dysfunction?
Bell’s Palsy, unknown etiology, treat with steroids early
