The applied anatomy of the pterygomandibular space

The applied anatomy of the pterygomandibular space

 
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9 terms

Chelsea_Liu26

Pterygomandibular space pterygopalatine fossa

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Infratemporal space borders
Anterior: maxillary tuberosity
Inferior: continuous with posterior spaces
Posterior: parapharyngeal cervical fascial space
Superior: Infratemporal space of maxilla, greater wing of sphenoid bone
Lateral: Medial surface of ramus and coronoid process
Medial: Lateral Pterygoid plate and superior constrictor muscle
Pterygomandibular space – borders
Posterior: parotid gland
Anterior: oral mucosa, pterygomandibular raphe, buccinator muscle
Medial: Medial pterygoid muscle
Lateral: medial surface ramus
Superior: Lower head lateral pterygoid muscle
Inferior: attachment on angle mandible medial pterygoid
IAN
Innervates all mandibular teeth and gingiva from premolars to midline
Lingual
-Ant 2/3 tongue
-mucosa floor of mouth
-lingual gingiva all mandibular teeth
Buccal
-Mucosa cheek
-Buccal gingiva of mandibular molars
Posterior pterygomandibular relations
-facial nerve
-retromadibular nerve
-external carotid artery
Posteromedial pterygomandibular relations
-internal carotid a
-internal jugular v
Pterygopalatine fossa borders
anterior – infratemporal surface mx
posterior: pterygoid process
medial: perpendicular process palatine
lateral: pterygomaxillary fissure
superior: orbital process palatine, inferior surface sphenoid
inferior: pyramidal process palatine
communication pterygopalatine fossa
-middle cranial fossa
-oral cavity
-nasal cavity
-naso-orbital
-temporal
-nasopharynx
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