Temporal and Infratemporal Regions Flashcards
what are the superior and posterior borders of the temporal fossa?
superior & inferior temporal lines
what is the anterior border of the temporal fossa?
- frontal process of zygomatic bone
- zygomatic process of frontal bone
what is the inferior border of the temporal fossa?
infratemporal crest deep to zygomatic arch
what is the roof of the temporal fossa covered by? why is this?
Temporal fascia
- provides resistance to masseter muscle
what is the lateral border of the infratemporal fossa?
ramus of mandible
what is the medial border of the infratemporal fossa?
lateral pterygoid plate of sphenoid bone
what is the anterior border of the infratemporal fossa?
posterior aspect of maxilla
what are the posterior borders of the infratemporal fossa?
- tympanic plate
- mastoid & styloid processes
What is the superior border of the infratemporal fossa?
infratemporal crest of sphenoid bone
what is the inferior border of the infratemporal fossa?
angle of the mandible (site where the medial pterygoid attaches)
what muscles are located in the infratemporal fossa?
- inferior part of temporalis muscle
- lateral pterygoid
- medial pterygoid
what blood vessels are located in the infratemporal fossa?
- maxillary artery
- pterygoid venous plexus
what nerves are located in the infratemporal fossa?
- mandibular
- inferior alveolar
- lingual
- buccal
- chorda tympani
- otic ganglion
where does the mandibular nerve originate from?
the trigeminal ganglion
where does the mandibular nerve exit the skull?
foramen ovale
what are the branches of the mandibular nerve?
- auriculotemporal
- inferior alveolar
- lingual
- buccal
what nerve encircles the middle meningeal artery?
the auriculotemporal nerve
what region of the face does the auriculotemporal supply?
- sensory fibres to the auricle & temporal region
- sensory fibres to the TMJ
how is the maxillary artery divided?
based on its location to the lateral pterygoid muscle
what are the main branches of the maxillary artery?
- middle meningeal
- inferior alveolar
- anterior & posterior deep temporal
- masseteric
- buccal
- superior alveolar
where do most of the veins that accompany the maxillary artery drain into?
pterygoid venous plexus