Olfactory Orbital Sulcus

The Olfactory Sulcus (OlfS) is the most mesial sulcus seen on the orbital surface of the hemisphere. The OlfS separates the gyrus rectus from the medial orbital gyrus. It is parallel to the interhemispheric fissure and has a straight postero-anterior course. It ends close to the pole but does not reach it completely (1,2). This sulcus is best seen when looking straight at the inferior surface of the hemisphere, but it can also be seen when looking at a tilted view, showing at the same time inferior and mesial surfaces of the hemisphere (3). In such a view its relation to the supraOS can be appreciated.

USC Biomedical Imaging Research Lab © 2009, designed by Dimitrios Pantazis