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Lacrimal groove
Sulcus in the jaw that leads to the sinus opening From Wikipedia, the free encyclopedia
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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.
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Additional images
Horizontal section of nasal and orbital cavities.
References
This article incorporates text in the public domain from page 160 of the 20th edition of Gray's Anatomy (1918)
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