Olfactory fossa

Olfactory fossa

The olfactory, or maxillary, fossa is a section of the mucous membrane of the anterior nasal cavity where the olfactory cells are located. The olfactory part has a round shape and is approximately the size of a pea. In humans, it is located in the area of ​​​​the projection of the anterior ends of the frontal bones (symphyses) above

Olfactory fossa. Olfactory dimple. **2nd order olfactory foveal concha** is located in the pharyngeal region and performs the same functions as the main olfactory concha. The apical sections of this shell are the thinnest and most deformed, while the lower sections are wide and dense; the surface of the shell is pitted with deeply penetrating wrinkles. The middle groove is very narrow, it is entirely covered with folds of the mucous membrane, which are most oriented along the posterior wall and posterior to it. A loose mucous substance with lumps of gray is deposited from the inner surface of the brain part of the olfactory fossa.