Deep Face 1 Flashcards
What bones of the skull come together as the PTERION?
Frontal
Parietal
Sphenoid
Temporal
Which artery can be ruptured and cause an Epidural Hematoma?
Middle Meningeal a.
Whats the roof of the temporal fossa?
temporal fascia
The superficial fibers of Temporalis muscle originate from?
Inferior temporal line and floor of temporal fossa
The deep fibers of Temporalis muscle originate from?
Infratemporal crest
Temporalis muscles inserts on?
Coronoid process of mandible
Innervation of temporalis muslce?
deep temporal nerves (anterior and posterior) of Mandibular nerve (V3)
Superior temporal line is found on what skull structure?
Parietal bone
During an Epidural Hematoma is the dura still attached or peeled off from the skull?
peeled off
What’s the function of the Temporalis muscle?
Elevates and retracts jaw
What two foramens are found in the infratemporal Crest?
Foramen Ovale
Foramen Spinosum
What runs through Formen ovale?
Mandibular division of trigeminal nerve
What runs through Foramen Spinosum?
Middle meningeal a
Pterygoid process expands into two pterygoid plates:
Medial pterygoid plate
Lateral pterygoid plate
Which pterygoid plate provides an attachement for “medial and lateral pterygoid mm”?
Lateral Pterygoid plate
Where does the superior head of lateral pterygoid muscle insert?
Articular disk of TMJ (Temporal Mandibular Disc)
Where does the inferior head of lateral pterygoid muscle insert?
Pterygoid fovea
Masseter muscle originates from and inserts onto?
Zygomatic arch; angle of ramus of the mandible
Action of Masseter muscle?
Strong elevator of mandible
What are the branches of External Carotid A?
SALFOP SuperT Mzx
S = Superior Thyroid A A = Ascending Pharyngeal A L = Lingual A F = Facial A O = Occipital A P = Posterior Auricular A SuperT = Superficial Temporal A Max = Maxillary A
Maxillary Artery is divided into 3 parts, what are they from Lateral to Medial:
Mandibular
Pterygoid
Pterygopalatine
What is MIDBIP
Mandibular Part:
M = Middle Meningeal A
I = Inferior Alveolar A
Pterygoid Part:
D = Deep Temporal A (Ant and Post Divisions)
B = Buccal A
Pterygopalatine Part:
I = Infraorbital A
P = Posterior and Superior Alveolar aa.
Accessory Meningeal A passes through ____ _____ to help supply the ____.
Foramen Ovale; Meninges
Buccal A travels with what nerve to supply buccal fat pad, buccinator muscle and buccal aspect of oral mucosa?
Long Buccal N
Pterygoid plexus of veins surrounds which artery?
Maxillary A.
Maxillary V joins ____ ____ v to form?
Superficial temporal v; retromandibular v.
Infection in the danger zone can spread along these anastomotic pathways to the pterygoid plexus and from there into ____, ____, _____ regions.
Cranial, Orbital, and pharyngeal
Mandibular division (V3) of Trigeminal nerve is derived from which branchial arch?
first
Mandibular division of trigeminal passes through ____ ____ and enters the infratemporal fossa.
Foramen Ovale
Recurrent meningeal br renters cranium through ____ ____ to innervate ____?
Foramen spinosum; meninges
Is the Buccal N of Trigeminal Sensory or motor?
Sensory
Lingual Nerve provides sensory information to?
General Sensory
Anterior 2/3 of the tongue, floor of mouth and lingual gingivae
Chorda Tympani nerve is a branch of which CN?
Fascial N (VII)
Chorda Tympani nerve exits the skull via?
Petrotympanic fissure
Chorda Tympani carries what type of fibers?
Preganglionic parasympathetics
The preganglionic fibers run in lingual nerve and synapse?
Submandibular ganglion
The postganglionic fibers run in lingual to?
Target glands
Ex: sublingual and submandibular glands
N to mylohyoid provides ____ innervation to which muscles?
Motor; Anterior bely of digastric and mylohyoid mm.
Auriculotemporal nerve provides sensory to?
Anterior ear and temporal region
The Preganglion parasympathetic fibers that are running through Auriculotemporal nerve to ____ ganglion are from?
Otic; Lesser Petrosal n
Lesser Petrosal n is a branch of which CN?
Glossopharyngeal n (IX)
Which nerve splits to encircle Middle Meningeal n and then reunites to continue along its course in front of the ear?
Auricuotemporal n
