Nasolacrimal duct

The nasolacrimal duct (sometimes called the tear duct) carries tears from the lacrimal sac into the nasal cavity. The opening of the nasolacrimal duct into the inferior nasal meatus is partially covered by a mucosal fold (valve of Hasner or plica lacrimalis). Excess tears flow through nasolacrimal duct which drains into the inferior nasal meatus. This is the reason the nose starts to run when a person is crying or has watery eyes from an allergy, and why one can sometimes taste eye drops.

单词	Ductus nasolacrimalis
释义	Ductus nasolacrimalis 英语百科 Nasolacrimal duct The nasolacrimal duct (sometimes called the tear duct) carries tears from the lacrimal sac into the nasal cavity. The opening of the nasolacrimal duct into the inferior nasal meatus is partially covered by a mucosal fold (valve of Hasner or plica lacrimalis). Excess tears flow through nasolacrimal duct which drains into the inferior nasal meatus. This is the reason the nose starts to run when a person is crying or has watery eyes from an allergy, and why one can sometimes taste eye drops.
随便看	intraclass sterile的意思 intraclass sterility的意思 intraclass variance的意思 intraclast的意思 intraclastic limestone的意思 intraclast的意思 intraclonal的意思 intracloud的意思 intracloud discharge的意思 intracloud lightning的意思 intraclub的意思 intracluster的意思 intra cluster的意思 intracluster correlation的意思 intracluster gas的意思 Intracluster medium的意思 intracluster variation的意思 intracoastal的意思 Intracoastal City的意思 Intracoastal Waterway的意思 intracochlear的意思 intracochlear direct current potential的意思 intracochlearly的意思 intra cocoon larva的意思 intra coding的意思

Ductus nasolacrimalis

Nasolacrimal duct