pterygomaxillary fissure

(redirected from fissura pterygomaxillaris)
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pter·y·go·max·il·lar·y fis·sure

the narrow gap between the lateral pterygoid plate and the infratemporal surface of the maxilla through which the infratemporal fossa communicates with the pterygopalatine fossa; gives passage to the third part of the maxillary artery and the posterior superior alveolar arteries, veins and nerves.