Test 3 - Quiz 8 - Infratemporal and Pterygopalatine Facial Spaces Flashcards
What foramen are in the infratemporal fossa?
Ovale, spinosum, mandibular (TMJ)
What fissure is in the ITF?
Petrotympanic fissure
What muscle is involved with the TMJ?
Lat pterygoid
What are the muscles of mastication?
Temporalis
Masseter
Med pterygoid
Lat pterygoid
What is the infratemporal fossa superior boundary?
Inferior surface of greater wing of sphenoid
What is the inferior border of the infratemporal fossa?
Imaginary plane medial to ramus of mandible
What is the anterior border of the infratemporal fossa?
Infratemporal portion of maxilla
What is the posterior border of the infratemporal fossa?
Styloid process
What is the medial border of the infratemporal fossa?
Pterygomaxillary fissure
What are the muscles found in the infratemporal fossa?
Temporalis
Medial pterygoid
Lateral pterygoid
Masseter
What nerves are in the infratemporal fossa?
Inf alevolar n.
Auriculotemporal n.
Lingual n.
Chorda tympani n.
Long buccal of V-3
What vasculature is in the infratemporal fossa?
Mid meningeal
Deep temporal
Inf alveolar
Inf orbital
What is the superior border of the pterygopalatine fossa?
Body of sphenoid
What is the anterior border of the pterygopalatine fossa?
Maxilla
What is the posterior border of the pterygopalatine fossa?
Pterygoid process and greater wing of sphenoid
What is the medial border of the pterygopalatine fossa?
Palatine bone and sphenopalatine foramen
What is the lateral border of the pterygopalatine fossa?
Infratemporal fossa via pterygomaxillary fissure
What are the 5 foramina in the pterygopalatine fossa?
Rotundum, pterygoid canal, pharyngeal canal, sphenopalatine foramen, greater and lesser palatine canals
*Also IOF and pterygomaxillary fissure
What nerves are in the pterygopalatine fossa? (10)
CN V2 - Zygomatic (-zygomaticotemporal, zygomaticofacial), nasopalatine, infraorbital (Mid and ant sup alveolar nn.), sup alve via infraorbital fissure
Pterygopalatine ganglion - greater and lesser palatine nn, nasopharynx-palatine n, pterygopalatine n
Greater and lesser petrosal nerves
What vasculature is in the pterygopalatine fossa? (6 aa.)
Post sup alve
Infraorbital
Descending palatine
Artery of pterygoid canal
Pharyngeal
Sphenopalatine
What 2 muscles do protrusion of the TMJ?
Lat and med pterygoids
What 4 muscles do retraction?
Temporalis, masseter, geniohyoid, and digastric
What 3 muscles do elevation?
Temporalis, masseter, med pterygoid
*All muscles of mastication, except lat pterygoid
What 3 muscles and two groups of muscles do depression of mandible?
Digastric, geniohyoid, mylohyoid, suprahyoids, infrahyoids
What muscle does lateral excursion?
Lat pterygoid
- unilateral contraction moves mandible towards other side
- working condyle rotates
- non-working condyle translates forward
What foramen does CN V2 utilize?
Rotundum
The ophthalmic and oculomotor nerves go to what ganglion and then what para and sym nn are sent to the eyeball?
Target?
Ciliary
Short ciliary nn.
Intrinsic eye mm.
The maxillary n., greater petrosal n., and deep petrosal n., all go to what ganglion?
Targets?
Pterygopalatine ganglion
Lacrimal gland, nasal cavity, max sinus, palate
The pterygopalatine ganglion sends out what nerves?
Nasopalatine
Pterygopalatine
Greater palatine
Lesser palatine
The mandibular n., and lesser petrosal n. go to what ganglion and what nerve is sent out?
Target?
Otic gang
Auriculotemporal n.
Parotid
Chorda tympani and lingual nerves go to what ganglion?
Targets?
Submandibular
Submandibular and sublingual glands
MAKE A MNEMONIC FOR NERVES AND ARTERIES IN THE PTERYGOPALATINE FOSSA
Do it jack.
