Nasolacrimal duct
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| Nasolacrimal duct | |
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| The lacrimal apparatus. Right side. | |
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| Outline of bones of face, showing position of air sinuses. | |
| Latin | d. nasolacrimalis |
| Gray's | subject #227 1029 |
| MeSH | Nasolacrimal+Duct |
| Dorlands/Elsevier | d_29/12314970 |
The nasolacrimal duct carries tears from the lacrimal sac into the nasal cavity. Excess tears flow through nasolacrimal duct which opens in the nose. This is the reason the nose starts to run when a person is crying.
Obstruction of the nasolacrimal duct leads to the excess overflow of tears called epiphora.
The canal containing the nasolacrimal duct is called the nasolacrimal canal.
[edit] Additional images
 Roof, floor, and lateral wall of left nasal cavity. |
[edit] See also
[edit] External links
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Accessory organs of the eye
Eyebrow - Eyelid - Canthus - Eyelash - Ciliary glands - Orbital septum - Plica semilunaris - Meibomian gland
Lacrimal apparatus: Lacrimal lake - Lacrimal gland - Lacrimal canaliculi - Lacrimal punctum - Lacrimal papilla - Nasolacrimal duct
