Family Friendly & Specialty Dentists in London, UK
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Structure and Boundaries of the Pterygopalatine Fossa
- Anterior boundary: superomedial part of the infratemporal surface of maxilla
- Posterior boundary: root of the pterygoid process and adjoining anterior surface of the greater wing of sphenoid bone
- Medial boundary: perpendicular plate of the palatine bone and its orbital and sphenoidal processes
- Lateral boundary: pterygomaxillary fissure
- Inferior boundary: part of the floor formed by the pyramidal process of the palatine bone
Nerve Supply of the Pterygopalatine Fossa
- The pterygopalatine fossa contains the second division of the trigeminal nerve
- The nerve of the pterygoid canal is a combination of the greater petrosal nerve (preganglionic parasympathetic) and the deep petrosal nerve (postganglionic sympathetic)
- Intraoral injection in this area can lead to block anesthesia of the entire second division of the trigeminal nerve
Related Articles and Terminology
- This article uses anatomical terminology
- Pterygopalatine canal (disambiguation)
- Fossa in the Human Body
Additional Images of the Pterygopalatine Fossa
- Alveolar branches of superior maxillary nerve and pterygopalatine ganglion
- The pterygopalatine ganglion and its branches
- Pterygopalatine fossa in a dog
- Pterygopalatine fossa
References and External Links
- Illustrated Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, page 69
- Osborn, Anne (March 1979). Radiology of the Pterygoid Plates and Pterygopalatine Fossa (PDF). American Journal of Roentgenology. 132 (3): 389–394. doi:10.2214/ajr.132.3.389. PMID106641.
- Ryan, Stephanie (2011). Chapter 1. Anatomy for diagnostic imaging (Thirded.). Elsevier Ltd. p.35. ISBN9780702029714.
- External link: Interactive at Columbia.edu
