Hyaloid artery
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| Artery: Hyaloid artery | |
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| The hyaloid artery is located on the gray band near the center of the image. | |
| Latin | arteria hyaloidea |
| Source | central retinal artery |
| Dorlands / Elsevier | a_61/12154494 |
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The hyaloid artery is a branch of the ophthalmic artery, which is itself a branch of the carotid artery. It is contained within the optic stalk of the eye and extends through the vitreous humor to the lens. Usually fully regressed before birth, its purpose is to aid the development of the lens in the growing fetus.
During the tenth week of development, the lens grows independent of a blood supply and the hyaloid artery usually regresses. Its proximal portion remains as the central artery of the retina. The distal remnants of the hyaloid artery form Cloquet's canal, which is suspended in the vitreous humour. These remnants can sometimes be seen as "floaters". Cloquet's canal is named after the man who first described it, French physician Jules Germain Cloquet (1790-1883}.
Occasionally the artery may not fully regress, resulting in persistent hyaloid artery.
See also
External links
- The Vitreous Humor at TedMontgomery.com
- "What are those threads that float in your field of vision?" at Straight Dope]]
- Hyaloid+artery at eMedicine Dictionary
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
