lacrimal sac

lacrimal sac
either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands
Syn: ↑tear sac, ↑dacryocyst
Hypernyms: ↑vesicle, ↑cyst
Part Holonyms: ↑lacrimal apparatus

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: a dilatation resembling a pouch that is located within the medial canthus of the eye, receives tears from the two lacrimal ducts (sense 1), and transmits them to the nasolacrimal duct

* * *

the dilated upper portion of the nasolacrimal duct that receives tears from the lacrimal ducts.

Useful english dictionary. 2012.

Look at other dictionaries:

  • Lacrimal sac — The lacrimal apparatus. Right side. (Lacrimal sac visible at upper right.) …   Wikipedia

  • lacrimal sac — sak n the dilated oval upper end of the nasolacrimal duct that is situated in a groove formed by the lacrimal bone and the frontal process of the maxilla, is closed at its upper end, and receives the lacrimal ducts * * * saccus lacrimalis …   Medical dictionary

  • lacrimal sac — Anat. the dilated upper portion of the nasolacrimal duct that receives tears from the lacrimal ducts. [1770 80] * * * …   Universalium

  • lacrimal sac — noun The upper dilated end of the tear duct Syn: nasolacrimal sac …   Wiktionary

  • fossa for lacrimal sac — f. sacci lacrimalis …   Medical dictionary

  • lacrimal apparatus — n the bodily parts which function in the production of tears including the lacrimal glands, lacrimal ducts, lacrimal sacs, nasolacrimal ducts, and lacrimal puncta * * * the structures that produce and drain away fluid from the eye. The lacrimal… …   Medical dictionary

  • lacrimal canaliculus — n LACRIMAL DUCT (1) * * * canaliculus lacrimalis [TA] the short passage in an eyelid, beginning at the punctum, that leads from the lacrimal lake to the lacrimal sac; called also lacrimal duct …   Medical dictionary

  • lacrimal duct — n 1) a short canal leading from a minute orifice on a small elevation at the medial angle of each eyelid to the lacrimal sac called also lacrimal canal, lacrimal canaliculus 2) any of several small ducts that carry tears from the lacrimal gland… …   Medical dictionary

  • sac — 1. A pouch or bursa. SYN: saccus [TA]. SEE ALSO: sacculus. 2. An encysted abscess at the root of a tooth. 3. The capsule of a tumor, or envelope of a cyst. [L. saccus, a …   Medical dictionary

  • Lacrimal canaliculi — Infobox Anatomy Name = PAGENAME Latin = canaliculus lacrimalis GraySubject = 227 GrayPage = 1028 Caption = The lacrimal apparatus. Right side. Caption2 = System = MeshName = MeshNumber = DorlandsPre = c 04 DorlandsSuf = 12208445 The lacrimal… …   Wikipedia