Deep Face 1 Flashcards
Temporal fossa is above the _____. Infratemporal fossa is below the _____.
Zygomatic arch
What is the Superior and posterior boundaries of temporal fossa?
Superior temporal line
What is the anterior boundaries of the temporal fossa?
Frontal and zygomatic bones
What is the Medial (floor) boundary of the temporal fossa?
Pterion
What is the lateral boundary of temporal fossa?
Zygomatic arch
What is the floor for temporal fossa?
-frontal, parietal, sphenoid, temporal portions
The floor or temporal fossa comes together at _____.
Pterion
_____ artery runs deep to the pterion and is particularly vulnerable to injury (rupture) in temporal region.
Middle meningeal a.
Middle meningeal artery supplies?
Meninges and the skull (Epidural)
Rupture of Middle meningeal artery leads to an _____ _____. Which is serious and possibly life threatening.
Epidural hematoma
What are the contents of temporal fossa? (6 superficial to deep)
- Skin
- Subcutaneous fascia
- Superficial Temporal Artery & Vein Auriculotemporal n. branch of V3, Temporal branch of the facial nerve
- Temporal fascia
- Temporalis Muscle.
- Deep Temporal Artery & Vein and Nerve (V3 branch)
Temporal fascia (dense fascia), what is the superior and inferior boundaries?
- Superior temporal line
- Zygomatic arch
Deep Temporal Artery & Vein and Nerve (V3 branch); supply and innervate, and drain the _____ muscle.
Temporalis
Temporal fascia forms _____ of the temporal fossa.
Attaches superiorly to the _____ line.
Roof; superior temporal line
Temporal fascia inferiorly splits into two layers: _____ attaches to the lateral surface of the zygomatic arch. _____ attaches to the medial surfaces of the zygomatic arch.
Superficial layer; Deep layer
What muscle:
•Fan-shaped
•Covered by temporal fascia
•Insertion onto the coronoid process of the mandible
Temporalis muscle
Temporalis muscle:
______ fibers originate from the inferior temporal line and floor of the temporal fossa
Superficial
Temporalis muscle:
______ fibers originate from infratemporal crest.
Deep
What is the innervation and blood supply of temporalis muscle?
Deep temporal nerve and artery (anterior and posterior) of the mandibular nerve (CN V3)
Is temporalis muscle innervated by branchiomotor fibers?
Yes, CN V3 (Both sensory and motor)
Irregularlyshaped space deep and inferior to the zygomatic arch, deep to the ramus of the mandible and posterior to the maxilla. What is this space called?
Infratemporal Fossa
Infratemporal Fossa communicate with the temporal fossa through the interval between the _____ and cranial bones
zygomatic arch
What is the superior boundary of Infratemporal Fossa?
zygomatic arch
What is the inferior boundary of Infratemporal Fossa?
no “real” boundary, mainly the posterior aspect of submandibular region.
What is the anterior boundary of Infratemporal Fossa?
maxilla and the inferior orbital fissure
External auditory meatus, small portion of the SCM, styloid process, internal carotid artery, internal jugular vein, condyle of the mandible, and the deep lobe of the parotid gland. These serves as _____ boundary of Infratemporal Fossa.
Posterior
Ramus of the mandible, zygomatic process of temporal bone & zygomatic bone (temporal process). These serves as ______ boundary of Infratemporal Fossa.
Lateral
Lateral pterygoid plate & pharyngeal musculature (the superior pharyngeal constrictor and 2 muscles of the soft palate, levator veli palatini, and tensor veli palatini) These serves as ______ boundary of Infratemporal Fossa.
Medial
Located in the medial superior border of infratemporal fossa is a “ledge of bone” called the _____.
Infratemporal crest
Infratemporal crest runs along a portion of _____of sphenoid to the _____ portion of the temporal bone
Greater wing; squamous
What is the roof of infratemporal fossa?
Foramen ovale (V3), Foramen spinosum (Middle meningeal a.)
Medial pterygoid plate provides attachment for _____ muscle
superior constrictor
Lateral pterygoid plate provides attachment for _____ and _____muscles.
medial and lateral pterygoid
What muscle:
Originates from the zygomatic arch and inserts on the angle and ramus of the mandible Strong elevator of the mandible.
Masseter
What artery:
•The largest of the two terminal branches of the external carotid artery
• Arises posterior to the neck of the mandible
Maxillary artery
Maxillary artery supplies the _____ and portions of the nasal and oral cavities.
Deep face
Maxillary is divided into three parts, what are they? (State which part)
- Mandibular (Lateral part)
- Pterygoid (Middle part)
- Pterygopalatine (Medial part)
Middle Meningeal artery – important artery, enters the foramen _____ and supplies the dura
mater and internal aspect of the skull. Anterior branch runs deep to ______.
spinosum; pterion
Accessory Meningeal artery – passes through the foramen _____ to help supply the meninges.
ovale
Inferior Alveolar artery – passes through the _____ to supply the mandibular
dentition (teeth) and emerge as the mental a.
mandibular foramen
What are the 3 arteries in the mandibular (lateral) part of maxillary artery?
Middle meningeal, accessory meningeal, and inferior alveolar
What are the 2 arteries in pterygoid (middle) part of maxillary artery?
- Deep temporal (ant. and post.) arteries.
- Buccal artery
What are the 2 arteries in the pterygopalatine (medial) part?
Infraorbital and posterior superior alveolar arteries
Deep Temporal (Anterior and Posterior) arteries: Ascend between the deep fibers of this muscle and the bones of the temporal fossa. What does it vascularize?
Temporalis
_____ artery– to the cheek (travels with long buccal nerve) to supply buccal fat pad, buccinator muscle, and buccal aspect of oral mucosa.
Buccal artery
Infraorbital – passes through the ______ to the infraorbital foramen & canal.
Inferior Orbital fissure
Middle & Anterior superior alveolar aa. that supply the _____ teeth.
maxillary
Infraorbital artery - continues anterior emerging from the infraorbital foramen to
supply the face in the region of the _____.
orbit
Posterior superior alveolar – to posterior maxillary teeth, enters the maxilla through the _____foramen
posterior superior
Pterygoid Plexus of Veins joins maxillary vein as it passes posterior to the _____.
mandible
Maxillary vein joins superficial temporal vein to form
_____ vein that lies within parotid gland
retromandibular
V3- (motor/branchiomotor) to muscles of mastication and mylohyoid m., anterior belly of digastric m.
branchiomotor
V3- _____ (fiber type) from lower teeth, chin, jaw, lower lip, cheek, anterior ear, temple
General sensory
The mandibular nerve (mandibular division of Trigeminal Nerve) is derived from a
structure known as the __ Branchial Arch and innervates muscles from ___ arch
1st
Recurrent meningeal br./nervous spinosum – re-enters cranium through foramen _____ to innervate meninges
spinosum
Lingual nerve lies anterior to the _____ nerve.
inferior alveolar nerve
What nerve:
• Enters the mouth between the medial pterygoid muscle and the ramus of the mandible
• Passes inferior to the 3rd molar tooth
Lingual nerve
What nerve provide Sensory to the anterior 2/3 of the tongue, the
floor of the mouth, and the lingual gingivae?
Lingual nerve
Chorda Tympani Nerve (branch of Facial Nerve) joins the Lingual Nerve in the _____ fossa
infratemporal
Chorda Tympani Nerve Exits the skull at the _____ fissure to
join the lingual nerve in the infratemporal fossa
petrotympanic
Chorda Tympani Nerve carries_____ _____ fibers for the submandibular and sublingual salivary glands
preganglionic parasympathetic
Chorda Tympani Nerve:
The _____fibers“run”in the Lingual nerve to the submandibular ganglion where they synapse. The _____ fibers “run” in the Lingual nerve to the target glands
preganglionic; postganglionic
What nerve:
• Enters mandibular foramen
• Passes through the mandibular canal
• Just before entering the mandibular foramen it gives a branch nerve to _____.
Inferior alveolar nerve
Inferior dental plexus sends branches to all mandibular teeth on its side, (sensory/motor)
Sensory
• Just before entering the mandibular foramen it gives a branch nerve to _____.
mylohoid
Auriculotemporal Nerve provides _____ to the anterior ear and temporal region.
Sensory
The preganglionic parasympathetic fibers of auriculotemporal nerve to Otic ganglion are from the _____ nerve (branch of Glossopharyngeal Nerve)
Lesser Petrosal
The _____ _____ fibers leaving the otic ganglion join (run with) the auriculotemporal nerve to supply secretomotor fibers to the parotid gland
postganglionic parasympathetic
Auriculotemporal nerve splits to encircle to _____ artery (before it passes through the foramen spinosum) and then reunites to continue along its course in front of the ear.
Middle meningeal artery
