nasolacrimal groove


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nasolacrimal groove

Etymology: L, nasus, nose, lacrima, tear; D, groeve, a shallow depression
a groove on the nasal surface of the upper jaw.

nasolacrimal groove

The groove extending from the inner angle of the eye to the primitive olfactory sac in the embryo. It separates the maxillary and lateral nasal processes; its epithelial lining gives rise to the nasolacrimal duct.
See also: groove

nasolacrimal

pertaining to the nose and lacrimal apparatus.

nasolacrimal apparatus
see lacrimal duct.
nasolacrimal duct
see nasal duct.
nasolacrimal duct obstruction
may be a congenital defect or the result of infection or injury; causes tears to run down the affected side.
nasolacrimal furrow
formed in the embryo by the fusion of the two maxillary processes; develops eventually into the nasolacrimal duct.
nasolacrimal groove
nasolacrimal furrow.
nasolacrimal radiography
nasolacrimal sac
see lacrimal sac.
nasolacrimal system
includes the lacrimal ducts, lacrimal sac and nasolacrimal duct.
nasolacrimal urticaria
hay fever; an uncommon manifestation of atopy in dogs.