On the nasal surface of the body of the maxilla, in front of the opening of the sinus is a deep groove, the lacrimal groove (or lacrimal sulcus), which is converted into the nasolacrimal canal, by the lacrimal bone and inferior nasal concha; this canal opens into the inferior meatus of the nose and transmits the nasolacrimal duct.

The lacrimal groove of maxilla is a pronounced indentation or groove located in front of the opening of the maxillary sinus, on the nasal side of maxilla. It transforms into the nasolacrimal canal, as it articulates with the descending process of lacrimal bone and the lacrimal process of the inferior nasal concha.

Overview of the nasolacrimal apparatus. At 32 days' embryonic gestation, the maxillary and frontonasal prominences appear, and as these processes enlarge, a groove forms between them (see the...

Nov 3, 2023 · Anterior to the posterior lacrimal crest is a longitudinally positioned groove called the lacrimal groove (or lacrimal sulcus). The inner margin of this sulcus unites with the frontal process of the maxilla and in this way forms the lacrimal fossa.

Dec 17, 2021 · The nasolacrimal canal is the short bony passage along which the nasolacrimal duct courses in the face. Gross anatomy. lateral wall. lacrimal groove of the medial maxilla; lacrimal hook of the lacrimal bone; medial wall. superiorly: lacrimal bone; inferiorly: lacrimal process of the inferior nasal concha bone; Related pathology

Oct 10, 2023 · A groove to the anterior of the crest is called the lacrimal groove. A long groove on the nasal surface portion of the nasal surface forms part of the middle nasal meatus. The nasolacrimal duct (tear duct) sits between the lacrimal and maxilla bones.

In front of the posterior lacrimal crest is a longitudinal groove, the lacrimal sulcus (sulcus lacrimalis), the inner margin of which unites with the frontal process of the maxilla, and the lacrimal fossa is thus completed. The upper part of this fossa lodges the lacrimal sac, the lower part, the naso-lacrimal duct.

Mar 6, 2024 · The nasolacrimal duct drains the lacrimal fluid posteriorly across the floor of the nasal cavity to the nasopharynx where the fluid is eventually swallowed. The nasolacrimal duct has two parts: the intraosseous part and the membranous part.

In front of the hiatus, there’s a nasolacrimal groove that, in conjunction with the descending process of the lacrimal bone and the lacrimal process of the inferior nasal concha, becomes the nasolacrimal canal. This canal carries the nasolacrimal duct down to the inferior meatus of nose.

Feb 23, 2024 · In this study, we aimed to evaluate the anatomical features of the nasolacrimal groove in detail by providing a morphological classification based on morphometric evaluations of the nasolacrimal groove.