Infratemporal Region Flashcards
What are the boundaries of te infratempooral fossa?
Anterior- posterior surface of maxilla
Posterior-tympanic plate, mastoid and styloïde processes
Roof- Infratemporal surface of the greater wing of the sphenoid
Inferior-Medial pterygoid attachment
Medial-lateral pterygoid plate of sphenoid
Lateral-ramus and coronoid process
What are the contents of the infratemporal fossa?
Mandibular branch of the trigeminal nerve and its branches
Maxillary artery and its branches
Chorda tympanic nerve
What are the characteristics of medial pterygoid?
Lies of medial aspect of mandible
Arises from medial side of lateral pterygoid plate of sphenoid
Inserts on medial surface of ramus
Has 2 heads
Closes mouth by elevating mandible, protrudes mandible
What are the characteristics of the lateral pterygoid muscle?
Arises from infratemporal surface of sphenoid bone and lateral surface of lateral pterygoid plate
Inserts on TMJ capsule, and condylar process of mandibular
Only muscle to open mouth
What are the branches of the external carotid artery from inferior to superior?
Superior thyroid Ascending pharyngeal Lingual Facial Occipital Posterior auricular 2 terminal branches: Maxillary and superficial temporal
What are the branches of the facial artery?
Inferior labial
Superior labial
Angular
What are the characteristics of the maxillary artery?
Gives 13 branches among them Inferior alveolar Middle meningeal Infra orbital Descending palatine Buccal
What are the 2 veins that formed the external jugular vein?
Posterior auricular vein
Posterior division of retromandibular vein
What are the 2 veins that formed the retromandibular vein?
Superficial temporal vein
Maxillary vein
What are the nerves that passes between the medial and lateral pterygoids?
Inferior alveolar nerve
Lingual nerve
Which nerve pierces the lateral pterygoid?
Buccal nerve
Which artery is anterior to the auriculotemporal nerve?
Superficial temporal artery
