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The '''pterygo-maxillary'''<ref>{{cite book|author1=John A. C. MacEwen|title=Surgical Anatomy|date=1910|publisher=New York William Wood & Company|isbn=978-1248364116|page=13|url=http://bookdome.com/health/anatomy/Surgical-Anatomy/The-Pterygo-Maxillary-Or-Zygomatic-Fossa.html|chapter=The Pterygo-Maxillary Or Zygomatic Fossa}}</ref> or '''zygomatic Fossa''' is an irregularly shaped cavity, situated below and on the inner side of the ]; bounded, in front, by the zygomatic surface of the superior ] and the ridge which descends from its malar process; behind, by the posterior border of the external ] and the ]; above, by the ] on the outer surface of the great wing of the ] and the under part of the squamous portion of the temporal; below by the ] border of the ]; internally, by the external pterygoid plate; and externally, by the zygomatic arch ramus of the lower jaw. It contains the lower part of the temporal, the external and internal pterygoid muscles, the internal maxillary artery and vein, and inferior maxillary nerve and their branches.<ref name="Todd1839">{{cite book|last=Todd|first=Robert Bentley|title=The cyclopaedia of anatomy and physiology|url=https://books.google.com/books?id=j8IEAAAAYAAJ&pg=PA217|year=1839|publisher=Longman, Brown, Green, Longmans, & Roberts|page=217}}</ref> At its upper and inner part may be observed two fissures, the spheno-maxillary and pterygo-maxillary. |
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The '''pterygo-maxillary'''<ref>{{cite book|author1=John A. C. MacEwen|title=Surgical Anatomy|date=1910|publisher=New York William Wood & Company|isbn=978-1248364116|page=13|url=http://bookdome.com/health/anatomy/Surgical-Anatomy/The-Pterygo-Maxillary-Or-Zygomatic-Fossa.html|chapter=The Pterygo-Maxillary Or Zygomatic Fossa}}</ref> or '''zygomatic Fossa''' is an irregularly shaped cavity, situated below and on the inner side of the ]; bounded, in front, by the zygomatic surface of the superior ] and the ridge which descends from its malar process; behind, by the posterior border of the external ] and the ]; above, by the ] on the outer surface of the great wing of the ], and the under part of the squamous portion of the temporal; below by the ] border of the ]; internally, by the external pterygoid plate; and externally, by the zygomatic arch ramus of the lower jaw. It contains the lower part of the temporal, the external and internal pterygoid muscles, the internal maxillary artery and vein, and inferior maxillary nerve and their branches.<ref name="Todd1839">{{cite book|last=Todd|first=Robert Bentley|title=The cyclopaedia of anatomy and physiology|url=https://books.google.com/books?id=j8IEAAAAYAAJ&pg=PA217|year=1839|publisher=Longman, Brown, Green, Longmans, & Roberts|page=217}}</ref> At its upper and inner part may be observed two fissures, the spheno-maxillary and pterygo-maxillary. |