Editing Aorta

[[File:Aorta segments.svg|thumb|Aorta segments|right]] [[File:Aorta branches.svg|thumb|Aorta branches|left]] [[File:Relations of the aorta, trachea, esophagus and other heart structures.svg|thumb|Relations of the aorta, trachea, esophagus and other heart structures.svg]] [[File:An opened aorta.jpg|thumb|An opened aorta|right]] [[File:Aorta Anatomy.jpg|thumb|Aorta Anatomy|right]] {{Short description|Main artery of the human body}}
The '''aorta''' is the main and largest [[artery]] in the [[human body]], originating from the [[left ventricle]] of the [[heart]] and extending down to the [[abdomen]], where it splits into two smaller arteries (the [[common iliac arteries]]). The aorta distributes [[oxygenated blood]] to all parts of the body through the [[systemic circulation]].
== Anatomy ==
The aorta is divided into several sections:
* The '''ascending aorta''' begins at the [[aortic valve]] and extends to the [[aortic arch]].
* The '''aortic arch''' curves over the heart, giving rise to the [[brachiocephalic artery]], the [[left common carotid artery]], and the [[left subclavian artery]].
* The '''descending aorta''' is further divided into the [[thoracic aorta]] and the [[abdominal aorta]].
=== Ascending Aorta ===
The ascending aorta arises from the [[left ventricle]] of the heart and extends to the aortic arch. It is approximately 5 cm in length and is responsible for supplying blood to the [[coronary arteries]].
=== Aortic Arch ===
The aortic arch is the portion of the aorta that bends between the ascending and descending aorta. It gives rise to three major arteries:
* The [[brachiocephalic artery]], which further divides into the [[right subclavian artery]] and the [[right common carotid artery]].
* The [[left common carotid artery]], which supplies blood to the left side of the head and neck.
* The [[left subclavian artery]], which supplies blood to the left arm.
=== Descending Aorta ===
The descending aorta is divided into the thoracic and abdominal aorta:
* The '''thoracic aorta''' runs from the aortic arch to the diaphragm.
* The '''abdominal aorta''' extends from the diaphragm to the point where it bifurcates into the [[common iliac arteries]].
== Function ==
The primary function of the aorta is to carry oxygen-rich blood from the heart to the rest of the body. It plays a crucial role in maintaining the [[systemic circulation]] and ensuring that all tissues receive adequate oxygen and nutrients.
== Clinical Significance ==
Several medical conditions can affect the aorta, including:
* [[Aortic aneurysm]]: An abnormal bulge in the wall of the aorta.
* [[Aortic dissection]]: A serious condition in which the inner layer of the aorta tears.
* [[Aortic stenosis]]: Narrowing of the aortic valve opening, restricting blood flow.
== See Also ==
* [[Cardiovascular system]]
* [[Artery]]
* [[Heart]]
* [[Systemic circulation]]
== References ==
{{Reflist}}
{{Cardiovascular system}}
{{Medicine-stub}}
[[Category:Arteries]]
[[Category:Cardiovascular system]]
[[Category:Anatomy]]