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Lacrimal artery

 
Medical Dictionary: lacrimal artery

n.

An artery with its origin in the ophthalmic artery, with distribution to the lacrimal gland, the lateral and superior rectus muscles, the upper eyelid, forehead, and temporal fossa.

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WordNet: lacrimal artery
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Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: an artery that originates from the ophthalmic artery and supplies the lacrimal gland and rectal eye muscles and the upper eyelid and the forehead
  Synonym: arteria lacrimalis


Wikipedia: Lacrimal artery
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Artery: Lacrimal artery
The ophthalmic artery and its branches. (Lacrimal artery visible at center right.)
The tarsi and their ligaments. Right eye; front view. (Lacrimal artery visible at upper left.)
Latin a. lacrimalis
Gray's subject #146 569
Supplies lacrimal gland, eyelids, conjunctiva
Source ophthalmic artery   
Branches lateral palpebral arteries
zygomatic branches
recurrent branch

The lacrimal artery arises close to the optic foramen, and is one of the largest branches derived from the ophthalmic artery: not infrequently it is given off before the artery enters the orbit.

It accompanies the lacrimal nerve along the upper border of the Lateral Rectus, supplies the lacrimal gland.

Contents

Branches

Its terminal branches, escaping from the gland, are distributed to the eyelids and conjunctiva: of those supplying the eyelids, two are of considerable size and are named the lateral palpebral arteries; they run medially in the upper and lower lids respectively and anastomose with the medial palpebral arteries, forming an arterial circle in this situation.

The lacrimal artery also give off one or two zygomatic branches, one of which passes through the zygomatico-temporal foramen, to reach the temporal fossa, and anastomoses with the deep temporal arteries; another appears on the cheek through the zygomatico-facial foramen, and anastomoses with the transverse facial.

A recurrent branch passes backward through the lateral part of the superior orbital fissure to the dura mater, and anastomoses with a branch of the middle meningeal artery.

Variations

The lacrimal artery is sometimes derived from one of the anterior branches of the middle meningeal artery.

Additional images

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated.


 
 

 

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Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Lacrimal artery" Read more