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Encyclopedia > Aorta
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 [eɪˈɔːtə] 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. Image File history File links Download high resolution version (451x700, 149 KB) Summary Licensing File links The following pages link to this file: Aorta Pulmonary artery Wikipedia:Grays Anatomy images with missing articles 11 Ligamentum arteriosum Aortic arch List of images in Grays Anatomy: VI. The Arteries Ascending... The heart and lungs, from an older edition of Grays Anatomy. ... The largest artery in the human body, the aorta originates from the left ventricle of the heart and brings oxygenated blood to all parts of the body in the systemic circulation. ... AORTA can also mean always-on real-time access, referring to WAN computer networks. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... IPA may refer to: The International Phonetic Alphabet or India Pale Ale ... Section of an artery For other uses, see Artery (disambiguation). ... Physical Features of the Human Body The human body is the entire physical structure of a human organism. ... In the heart, a ventricle is a chamber which collects blood from an atrium (another heart chamber) and pumps it out of the heart. ... The heart and lungs, from an older edition of Grays Anatomy. ... Systemic circulation is the portion of the cardiovascular system which carries oxygenated blood away from the heart, to the body, and returns deoxygenated blood back to the heart. ...

Contents

The course of the aorta

The aorta is usually divided into five segments/sections [1] [2] :

The arch of the aorta, and its branches. ... For the embryological structure, see Aortic arches. ... The descending aorta is divided into two portions, the thoracic and abdominal, in correspondence with the two great cavities of the trunk in which it is situated. ... The common iliac arteries are two large arteries, about 4cm long in adults but more than a centimetre in diameter, that originate from the aortic bifurcation and terminate when bifurcating into the external iliac artery and internal iliac artery. ... The largest artery in the human body, the aorta originates from the left ventricle of the heart and brings oxygenated blood to all parts of the body in the systemic circulation. ... For other types of diaphragm, see Diaphragm. ... AORTA can also mean always-on real-time access, referring to WAN computer networks. ... For other types of diaphragm, see 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. Diastole is the period of time when the heart relaxes after contraction. ...


Right ventricle Left ventricle Aortic valve Mitral valve Left atrium Right atrium Aorta Pulmonary valve Tricuspid valve Inferior vena cava Superior vena cava Pulmonary artery Pulmonary vein

Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow.
Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow.

Image File history File links Diagram_of_the_human_heart_(cropped). ...

Diseases/pathology

Aneurysm of the aortic sinus, also known as the sinus of Valsalva. ... An aortic aneurysm is a general term for any swelling (dilatation or aneurysm) of the aorta, usually representing an underlying weakness in the wall of the aorta at that location. ... Syphilis is a sexually transmitted disease caused by Treponema pallidum. ... Wikipedia does not yet have an article with this exact name. ... Sketch showing heart with coarctation of the aorta. ... In the developing fetus, the ductus arteriosus (DA) is a shunt connecting the pulmonary artery to the aortic arch that allows much of the blood from the right ventricle to bypass the fetus fluid-filled lungs. ... Marfan syndrome is an autosomal dominant genetic disorder of the connective tissue characterized by disproportionately long limbs, long thin fingers, a relatively tall stature, and a predisposition to cardiovascular abnormalities, specifically those affecting the heart valves and aorta. ... In medicine, a trauma patient has suffered serious and life-threatening physical injury resulting in secondary complications such as shock, respiratory failure and death. ... The aorta, shown in red Traumatic aortic rupture, also called traumatic aortic disruption or transection, is a condition in which the aorta, the largest artery in the body, is torn or ruptured as the result of trauma. ...

References

  1. ^ Tortora, Gerard J: "Principles of Human W. & Karen A. Koos: Human Anatomy, second edition, page 479. Wm. C. Brown Publishing, 1994 (ISBN 0-697-12252-2)
  2. ^ De Graaff, Van: "Human Anatomy, fifth edition", pages 548-549. WCB McGraw-Hill, 1998 (ISBN 0-697-28413-1)
  3. ^ Samett EJ. http://www.emedicine.com/radio/topic44.htm Aorta, Trauma. eMedicine.com. Accessed on: April 24, 2007.
  4. ^ (2006) "Aortic Trauma in Scotland - A Population Based Study.". European Journal of Vascular and Endovascular Surgery 32 (6): 686-689. PMID 16750920. Retrieved on 2007-04-24. 

is the 114th day of the year (115th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st Century. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st Century. ... is the 114th day of the year (115th in leap years) in the Gregorian calendar. ...

External links

Look up Aorta in
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  Results from FactBites:
 
VI. The Arteries. 2. The Aorta. Gray, Henry. 1918. Anatomy of the Human Body. (1876 words)
The ascending aorta is contained within the pericardium, and is enclosed in a tube of the serous pericardium, common to it and the pulmonary artery.
The arch of the aorta, and its branches.
The Arch of the Aorta (Arcus AortÆ; Transverse Aorta) (Fig.
Aorta definition - Medical Dictionary definitions of popular medical terms (264 words)
Aorta: The largest artery in the body, the aorta arises from the left ventricle of the heart, goes up (ascends) a little ways, bends over (arches), then goes down (descends) through the chest and through the abdomen to where ends by dividing into two arteries called the common iliac arteries that go to the legs.
Anatomically, the aorta is traditionally divided into the ascending aorta, the aortic arch, and the descending aorta.
The descending aorta is, in turn, subdivided into the thoracic aorta (that descends within the chest) and the abdominal aorta (that descends within the belly).
  More results at FactBites »

 
 

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