aorta
| Artery: Aorta |
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| 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.
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Contents
- 1 The course of the aorta
- 2 Features
- 3 Diseases/pathology
- 4 References
- 5 External links
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The course of the aorta
The aorta is usually divided into five 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
Features
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 diastole, as during this time the aorta contracts passively.
Diseases/pathology
- Aneurysm of sinus of Valsalva
- Aortic aneurysm - myotic, bacterial (e.g. syphilis), senile, genetic, associated with valvular heart disease
- Dissecting aortic aneurysm
- Aortic coarctation - pre-ductal, post-ductal
- Atherosclerosis
- Marfan syndrome
- Trauma, most often thoracic and distal to the left subclavian artery[3] and frequently quickly fatal[4]
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aorta news and aorta articles
Here's our top rated
aorta links for the day:
Doctor alleges firm providing body scans ripped off patients in Great Falls
Great Falls Tribune - Mar 12 4:03 AM A California company that traveled to Great Falls last summer offering ultrasound body scans it claimed could detect future health problems ranging from strokes to prostate cancer has been ordered to stop practicing medicine in Montana without a license.
Mother hopes to form new support group
Arroyo Grande Times Press Recorder - Mar 09 12:36 AM Jayden Von Burg underwent nine hours of open heart surgery to repair a blockage of her aorta on Dec. 9. She was 5 weeks old at the time of her operation, which took place at Stanford University Medical Center.
DPS chief: Officers followed protocol
The Observer - Mar 10 4:18 PM Although he would not comment on the murder trial of Josh Tillinghast or the tactics of the defense attorneys, Rio Rancho Department of Public Safety Director Robert Boone said Thursday his officers properly followed procedure during the investigation.
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