Deep Face Flashcards
posterior/superior boarder of temporal fossa
superior and infeior temporal lines
anterior boarder of TF
frontal and zygomatic
lateral boarder of temporal fossa
zygomatic arch
inferior boarder of TF
infratemporal crest of sphenoid
floor of TF
frontal, parietal, temporal, greater wing of sphenoid
pterion
where frontal, parietal, temporal, and greater wing of sphenoid meet
roof of TF
temporalis fascia
lateral blow to temporal does what
breaks pterion, ruptures middle meningeal artery leading to an epidural hemorrhage
contents of TF
temporalis m
temporalis fascia
layers of temporals fascia and their attachments
superficial- superior margin of zygomatic arch
deep- under zygomatic arch and merges with investing fascia of masseter
muscles of mastication
temporalis
masseter
lateral pterygoid
medial pterygoid
LPM origin and insertion
superior head- greater wing sphenoid
inferior head- lateral lateral pterygoid plate
neck of mandible and articular disc
action of LPM
protrude mandible and move it side to side
innervation of mastication muscles
V3
MPM origin and insertion
deep- medial lateral pterygoid plate and palatine bone
superficial- maxilla tuberosity
medial surface of mandible ramus
action MPM
elevate and protrude mandible
grinding
bones of TMJ
mandibular condyle
articular tubercle of temporal
mandibular fossa of temporal
articular disc of TMJ
fibrocartilage fused with articular capsule
function of superior articular disc
protrusion and retrusion
function of inferior articular dic
elevation and depression
intrinsic reinforcement of TMJ
lateral ligament
prevents posterior dislocation
extrinsic reinforcement of TMJ
stylomandibular- not significant
sphenomandibular- primary passive support and fulcrum
where does the extrinsic reinforcement of TMJ come from
remnants of Meckel’s cartilage
muscles of TMJ depression
suprahyoid and infrahyoid
gravity
muscles of TMJ elevation
temporalis
masseter
medial pterygoid
muscles of TMJ protrusion
lateral pterygoid
masseter, MPM
muscles of TMJ retrusion
temporalis
masseter
motions inferior TMJ compartment involved with
elevation and depression
motions superior TMJ compartment involved with
protrusion and retrusion
lateral movement TMJ muscles
retractors same side- temporalis and master
protractors opposite side- MPM LPM
contents of infra temporal fossa
inferior temporalis m MPM LPM maxillary a pterygoid venous plexus chorda tympani n mandibular division branches otic ganglion
names of parts of maxillary artery
mandibular
pterygoid
pterygopalatine
branches of part 1 maxillary artery
deep auricular anterior tympanic middle meningeal accessory menigeal inferior alveolar
branches of part 2 maxillary artery
deep temporal
masseteric
pterygoid
buccal
branches of part 3 maxillary artery
posterior superior alveolar infraorbital descending palatine artery of pterygoid canal pharyngeal sphenopalatine
location of pterygoid venous plexus
between temporals and pterygoid muscles
drainage of pterygoid venous plexus
deep facial vein
contents of pterygopalatine fossa
terminal maxillary artery
nerve to pterygoid canal
maxillary nerve
pterygopalatine ganglion
