Pterygoid Fossa and Maxillary Sinus
Right pterygopalatine fossa, from without. The greater portion of the ala magna oss. sphenoid., of the lateral part of the corpus maxillae and of the pars orbit. oss. front. have been removed by a sagittal section, exposed the medial wall of the sinus maxillaris and of the orbit. Labels: **, indicate a probe through the Foramen rotundum; *, indicates a probe through the Canalis pterygoideus.