Temporal & infratemporal region

This presentation is about temporal and infratemporal fossa in detail.

1. Temporal & Infratemporal Fossa

2. Temporal Fossa lies on the side of the skull, BOUNDARIES Anterior: Zygomatic and frontal bones. Posterior: Inferior temporal line and supramastoid crest. Superior: Superior temporal line lnferior : Zygomatic arch. Floor: Parts of frontal, parietal, temporal and greater wing of sphenoid. Temporalis muscle is attached to the floor and inferior temporal line. CONTENTS 1. Temporalis muscle. 2. Middle temporal artery (branch of superficial temporal artery 3. Zygomaticotemporal nerve and artery. 4. Deep temporal nerves for supplying temporalis muscle. 5. Deep temporal artery, branch of maxillary artery.

3. Infratemporal Fossa It is an irregular space below zygomatic arch. BOUNDARIES Anterior : Posterior surface of body of maxilla. Roof : Infratemporal surface of greater wing of sphenoid. Medial: Lateral pterygoid plate and pyramidal process of palatine bone. Lateral : Ramus of mandible Contents 1. Lateral pterygoid muscle. 2. Medial pterygoid muscle 3. Mandibular nerve with its branches. 4. Maxillary nerve with posterior superior alveolar nerve. 5. Chorda tympani, branch of VII nerve. 6. 1st and 2nd parts of maxillary artery with their branches. 7. Posterior superior alveolar artery, branch of 3rd part of maxillary artery. 8. Accompanying veins