What does collateral circulation mean?
Definitions for collateral circulation
col·lat·er·al cir·cu·la·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word collateral circulation.
Wikipedia
Collateral circulation
Collateral circulation is the alternate circulation around a blocked artery or vein via another path, such as nearby minor vessels. It may occur via preexisting vascular redundancy (analogous to engineered redundancy), as in the circle of Willis in the brain, or it may occur via new branches formed between adjacent blood vessels (neovascularization), as in the eye after a retinal embolism or in the brain when moyamoya occurs. Its formation may be related by pathological conditions such as high vascular resistance or ischaemia. An example of the usefulness of collateral circulation is a systemic thromboembolism in cats. This is when a thrombotic embolus lodges above the external iliac artery (common iliac artery), blocking the external and internal iliac arteries and effectively shutting off all blood supply to the hind leg. Even though the main vessels to the leg are blocked, enough blood can get to the tissues in the leg via the collateral circulation to keep them alive.
Wikidata
Collateral circulation
Collateral circulation is circulation in an area of tissue or an organ with a number of different pathways for blood to reach it. This is often a result of anastamoses - branches formed between adjacent blood vessels. An example of the usefulness of collateral circulation is a systemic thrombo-embolism in cats. This is when a thrombus lodges above the external iliac artery, blocking the external and internal iliac arteries and effectively shutting off all blood supply to the hind leg. Even though the main vessels to the leg are blocked, enough blood can get to the tissues in the leg via the collateral circulation to keep them alive. Cerebral collateral circulation Blood flow to the brain is maintained via a network of collateral arteries that anastomose in the circle of Willis, which lies at the base of the brain. In the circle of Willis so-called communicating arteries exist between the front and back parts of the circle of Willis, as well as between the left and right side of the circle of Willis. Cardiac collateral circulation Another example is where a person suffers an acute myocardial infarction. Collateral circulation in the heart tissue will sometimes bypass the blockage in the main artery and supply enough oxygenated blood to enable the cardiac tissue to survive and recover.
U.S. National Library of Medicine
Collateral Circulation
Maintenance of blood flow to an organ despite obstruction of a principal vessel. Blood flow is maintained through small vessels.
Numerology
Chaldean Numerology
The numerical value of collateral circulation in Chaldean Numerology is: 5
Pythagorean Numerology
The numerical value of collateral circulation in Pythagorean Numerology is: 8
Translations for collateral circulation
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"collateral circulation." Definitions.net. STANDS4 LLC, 2024. Web. 23 Apr. 2024. <https://www.definitions.net/definition/collateral+circulation>.
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