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1) "Aortic" -- As to aortic stent aor·ta
Pronunciation: A-'or-t&
Function: noun
Inflected Form(s): plural -tas or aor·tae /-tE/
Etymology: New Latin, from Greek aortE, from aeirein to lift
: the great arterial trunk that carries blood from the heart to be distributed by branch arteries through the body -- see HEART illustration
- aor·tic /-'or-tik/ adjective Pronunciation Symbols
| Artery: Aorta | | | | The thoracic aorta, heart and other great vessels. | | Gray's | subject #142 | | Branches | thoracic aorta, abdominal aorta | | MeSH | Aorta | The aorta (generally pronounced /eɪ.oʊɹ.tə/ or "ay-orta") is the largest artery in the human body, originating from the left ventricle of the heart and bringing oxygenated blood to all parts of the body in the systemic circulation. - 1 The course of the aorta
- 2 Features
- 3 Diseases/pathology
- 4 References
- 5 External links
| The aorta is usually divided into three segments/sections [1] [2] : - Ascending aorta — the section between the heart and the arch of aorta
- Arch of aorta — the peak part that looks somewhat like an inverted "U"
- Descending aorta — the section from the arch of aorta to the point where it divides into the common iliac arteries
- Thoracic aorta — the half of the descending aorta above the diaphragm
- Abdominal aorta — the half of the descending aorta below the diaphragm
The aorta is an elastic artery, and as such is quite distensible. When the left ventricle contracts to force blood into the aorta, the aorta expands. This stretching gives the potential energy that will help maintain blood pressure during diasto..."
2) "Stent" -- As to aortic stent stent
Pronunciation: 'stent
Function: noun
Etymology: Charles Thomas Stent died 1885 English dentist
: a short narrow metal or plastic tube often in the form of a mesh that is inserted into the lumen of an anatomical vessel (as an artery or a bile duct) especially to keep a previously blocked passageway open Pronunciation Symbols
It has been suggested that Stent Graft be merged into this article or section. (Discuss) Endoscopic image of self-expanding metallic stent in esophagus, which was used to palliatively treat esophageal cancer. Endoscopic image of biliary stent seen protruding from ampulla of Vater at the time of duodenoscopy In medicine, a stent is either an expandable wire form or perforated tube (conventionally perforated by means of laser cutting) that is inserted into a natural conduit of the body to prevent or counteract a disease-induced localized flow constriction. - 1 Applications
- 2 Etymology
- 3 See also
- 4 External links
| The main purpose of a stent is to counteract significant decreases in vessel or duct diameter. Stents are often used to alleviate diminished blood flow to organs beyond an obstruction in order to maintain an adequate delivery of oxygen. Although the most common use of stents is in coronary arteries, they are widely used in other tubular structures, such as central and peripheral arteries and veins, bile ducts, esophagus, colon, trachea or large bronchi, ureters, and urethra. One of the drawbacks of vascular stents is the potential development of a thick smooth muscle tissue inside the lumen, the so-called neointima. Development of a neointima is variable but can at times be so severe as to re-occlude the vessel lumen (restenosis), especially in the case of smaller diameter vessels, which often results in reintervention. Consequently, current research focuses on the reduction of neointima after stent placement. Considerable improvements have been made, including the use of more bio-compatible materials, anti-inflammatory drug-eluting stents, resorbable stents, and others. Fortunately, even if stents are eventually covered by neointima, the minimally invasive nature of their deployment makes reintervention possible and usually straig..."
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Regularly Occuring Typos with aortic stent include: oartic arotic aotric aoritc aortci ortic artic aotic aoric aortc aorti qortic sortic zortic eortic iortic oortic uortic airtic akrtic alrtic aprtic aartic aertic aurtic aoetic aodtic aoftic aottic aorric aorfic aorgic aoryic aortuc aortkc aortoc aortac aortec aortuc aortix aortid aortif aortiv aortik tsent setnt stnet stetn tent sent stnt stet sten atent wtent dtent xtent ztent srent sfent sgent syent stwnt stsnt stdnt strnt stant stint stont stunt stebt steht stejt stemt stenr stenf steng steny
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