Deep Face Flashcards
(37 cards)
Temporalis Muscle is innervated by what nerve?
Anterior and Posterior Deep
Temporal Nerves
Anterior and medial fascicles of the temporal fascicles of Temporalis muscle do what?
elevate jaw
Posterior fascicles of Temporalis muscle do what?
retract jaw
Anterior and Posterior Deep
Temporal Nerves come from what nerve?
Mandibular Div.
of Trigeminal, V3
separates masseter from
buccinator
Buccal fat pad
Masseter’s origin
zygomatic arch
Insertion of the Masseter
mandibular ramus and angle
Strong elevator of the jaw
Masseter
Nerve innervation for masseter
Masseter branch from the stem
of the Mandibular Division of Trigeminal Nerve
Nerve innervation for Lateral Pterygoid Muscle
Lateral Pterygoid Nerve, branch of V3
The superior head of the lateral pterygoid muscle inserts where?
articular capsule and disc of TMJ
Both masseter and medial pterygoid attach to angle of the
mandible, forming what?
masseteric (mandibular) sling
Functions to elevate and protrude the mandible
Medial Pterygoid Muscle
What is the only muscle that opens the jaw?
Lateral Pterygoid
______ of the temporal bone: anterior limit
of the TMJ.
Articular Tubercle
________ receives
head of the mandible to create the TMJ.
Mandibular Fossa of the temporal bone
posterior
limit of the TMJ.
Postglenoid tubercle of the temporal bone
______
Divides TMJ joint into suprameniscal and inframeniscal
compartments
Lateral Pterygoid M. superior
head
The _______ of the joint capsule
encloses the temporomandibular joint complex
fibrous membrane
____ of the TMJ function to help limit
the movement of the joint, but they do not
stabilize it
Ligaments
Rupture of this artery leads to an epidural (aka. Extra-dural) hematoma -
serious & possibly life threatening
Middle meningeal artery
(supplies the meninges and the skull) runs deep to the pterion and is
particularly vulnerable to injury (rupture) in this region
Middle meningeal artery
Attaches superiorly to the superior temporal line Inferiorly splits into two layers: Superficial layer attaches to the lateral surface of the zygomatic arch Deep layer attaches to the medial surfaces of the zygomatic arch
Temporal Fascia
Innervated by the deep temporal nerves (anterior
and posterior) of the mandibular nerve (CN V3)
Temporalis