WordNet

relating to or located near the organ that produces tears (同)lachrymal
of or relating to tears (同)lachrymal
(anatomy) a point or small area

PrepTutorEJDIC

=lachrymal / 涙腺(るいせん)の近くにある

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/05 11:02:39」(JST)

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The lacrimal canaliculi, one in each eyelid, commence at minute orifices, termed puncta lacrimalia (or lacrimal punctum, or lacrimal point), on the summits of the papillae lacrimales, seen on the margins of the lids at the lateral extremity of the lacus lacrimalis. There are two lacrimal puncta in the medial (inside) portion of each eye.

Together, they function to collect tears produced by the lacrimal glands. The fluid is conveyed through the lacrimal canaliculi to the lacrimal sac, and thence via the nasolacrimal duct to the inner nose.

Additional images

A close up of a lacrimal punctum.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

Diagram and discussion at aafp.org

This article about the eye is a stub. You can help Wikipedia by expanding it.

UpToDate Contents

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1. 小児における鼻涙管閉塞（涙管閉鎖症） nasolacrimal duct obstruction dacryostenosis in children
2. 鼻の先天異常 congenital anomalies of the nose
3. 顔面裂および全前脳胞症 facial clefts and holoprosencephaly
4. 正常な加齢 normal aging
5. 持続性の流涙がみられる小児に対するアプローチ approach to the child with persistent tearing

English Journal

A para-canalicular abscess resembling an inflamed chalazion.

Almaliotis D, Nakos E, Siempis T, Koletsa T, Kostopoulos I, Chatzipantazi M, Karampatakis V.SourceLaboratory of Experimental Opthalmology, Medical School, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece.
Case reports in ophthalmological medicine.Case Rep Ophthalmol Med.2013;2013:618367. doi: 10.1155/2013/618367. Epub 2013 May 27.
Background. Lacrimal infections by Actinomyces are rare and commonly misdiagnosed for long periods of time. They account for 2% of all lacrimal diseases. Case Report. We report a case of a 70-year-old female patient suffering from a para-canalicular abscess in the medial canthus of the left eye, bes
PMID 23762696

Tear meniscus height, lower punctum lacrimale, and the tear lipid layer in normal aging.

Patel S, Wallace I.SourceResearch and Development Department, Vissum-Instituto Oftalmologico de Alicante, Alicante, Spain. sudhir.patel@psd.csa.scot.nhs.uk
Optometry and vision science : official publication of the American Academy of Optometry.Optom Vis Sci.2006 Oct;83(10):731-9.
PURPOSE: The purposes of this study are to investigate the tear meniscus height (TMH), lipid layer, and critical dimensions of the lower punctum lacrimale (DPL) in normal human subjects over a large age range; and to determine the shape and general characteristics of the lower punctum lacrimale in a
PMID 17041318

[Progressive peripunctal nevus in an adult].

Frisch IB, Völcker HE, Dithmar S.SourceUniversitäts-Augenklinik Heidelberg. inez.frisch@HSK-Wiesbaden.de
Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft.Ophthalmologe.2003 Jun;100(6):476-8.
Nevi arise from migration of melanocytes into the epithelium. Over the years they experience a typical maturation, with the possibility of an increased thickness due to accompanying inflammation or fibrosis but actual growth of nevi is rare in adults. A 70-year-old patient presented with a growing t
PMID 12820016

「涙点」

Lacrimal punctum
	The tarsal glands, etc., seen from the inner surface of the eyelids. (Puncta lacrimalia visible at center left.)
	The lacrimal apparatus. Right side. Note outdated terminology: The "Lacrimal ducts" in Gray's are now called "Lacrimal canals".
Details
Latin	Puncta lacrimalia
Identifiers
Gray's	p.1028
Dorlands; /Elsevier	p_42/12680460
TA	A15.2.07.065
FMA	59365
	Anatomical terminology