Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== MAXILLARY ARTERY ====== MAXILLARY ARTERY * Features * Larger terminal branch of ECA * course * Given off behind neck of mandible * First / mandibular part * Runs horizontally forwards * First between neck of mandible and sphenomandibular ligament * Below auriculotemporal nerve * Along lower border of lateral pterygoid * Second part * Upwards and forwards * Superficial to lower head of lateral pterygoid * Third part * Passes between two heads of lateral pterygoid * Through pterygomaxillary fissure * Enter pterygopalatine fossa * BRANCHES * Branches of first part * Deep auricular artery * Supplies external acoustic meatus , tympanic membrane and TMJ * Anterior tympanic branch * Supplies middle ear , medial surface of tympanic membrane * Middle meningeal artery * Lies between lateral pterygoid and spheno-mandibular ligament * Then between 2 roots of auriculotemporal nerve * Enters skull through foramen spinosum to reach middle cranial fossa * Divides in to a * large frontal branch which courses to pterion * Smaller parietal branch * Accessory meningeal artery * Enters cranial cavity * Through foramen ovale * Supplies Meninges and structures in infratemporal fossa * Inferior alveolar artery * Runs downwards and forwards medial to ramus of mandible * Reaches mandibular foramen * Before entering gives a * lingual branch to tongue * Mylohyoid branch that descends in mylohyoid groove * Passing through enters mandibular canal * In it runs downward and forwards * Mental branch passes through mental foramen * SECOND PART * mainly muscular branches * Masseteric * Deep temporal branches ( anterior and posterior ) * Ascend on lateral aspect of skull deep to temporalis muscle * Pterygoid muscles * Buccal branch supplies skin of cheek * THIRD PART * posterior superior alveolar artery * Just before maxillary artery enters pterygomaxillary fissure * Descends on posterior surface of maxilla * Gives branches that enter canals in bone to supply molar and premolar teeth * Infraorbital artery * Arises just before pterygomaxillary fissure * Enters orbit through infraorbital fissure * Branches * Middle superior alveolar branch- premolar teeth * Anterior superior alveolar branch- apertures of maxilla to reach incisor and canine teeth * Greater palatine artery * Runs downward in greater palatine canal * Emerge on posterolateral part of hard palate * Through greater foramen * Runs forward near lateral margin of palate * Incisive canal * Pharyngeal branch * Runs backwards through canal * Inferior aspect of body of sphenoid bone * Palatovaginal / pharyngeal canal * Supplies part of nasopharynx , auditory tube and sphenoidal air sinus * Artery of pterygoid canal * Runs backwards * Supply pharynx , auditory tube and tympanic cavity * Sphenopalatine artery * Passes medialy through sphenopalatine foramen * Enters cavity of nose * Branches * Posterolateral nasal branches * Lateral wall of nose , paranasal sinus * Posteromedial branches * Nasal septum {{:anatomy:maxillary_artery.png}} en/maxillary-artery.txt Last modified: 2023/06/17 07:09by 127.0.0.1