* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Temporal and infratemporal fossae
Survey
Document related concepts
Transcript
Temporal and infratemporal fossae Lecture 3 OBJECTIVES • Understand the temporal region – Boundaries – Contents – Blood supply • Know infratemporal region – Boundaries – Contents Temporal region • Temporal fossa • Infratemporal fossa • Regions above and below zygomatic arch Temporal fossa • Contains the temporalis muscle • Boundaries Post& sup- temporal lines Ant- frontal & zygomatic bones Lat- zygomatic arch Inf- infratemporal crest • Floor frontal bone Parietal bone Temporal bone Greater wing of the sphenoid Pterion TF • Roof – temporalis fascia Attaches to the superior temporal line • Contents- temporalis muscle Deep temporal nerve & vessels TM Deep temporal nerve& vessels Infratemporal fossa • Region deep and inferior to zygomatic arch • Boundaries Lat- ramus of the mandible Medially- lateral pterygoid plate Ant- post aspect of maxilla Post- tympanic plate, mastoid, styloid processes Sup- infratemporal surface of the sphenoid bone Inf- attachment of the medial pterygoid muscle on the angle of mandible Contents • • • • • Temporalis muscle Pterygoid muscles Maxillary artery Pterygoid venous plexus Nerves Mandibular Inferior alveolar Lingual Buccal Chorda tympani Otic ganglion Pterygoid venous plexus Maxillary .a Lingual nerve Inf. Alveolar N • Pterigoid venous plexus Clinical • Spread of infections to the intracranial fossa Thank you