Descending aorta
The descending aorta is the part of the aorta, the largest artery in the body, that runs down through the chest and the abdomen. The descending aorta starts after the arch of the aorta and ends by splitting into two great arteries (the common iliac arteries) that go to the legs. The descending aorta, by convention, is subdivided into the thoracic aorta and the abdominal aorta. The thoracic aorta, the part of the aorta that runs from the arch of the aorta to the diaphragm, gives off numerous branches that supply oxygenated blood to the chest cage and the organs within the chest. The other part of the descending aorta, the abdominal aorta, is the final section of the aorta. It begins at the diaphragm as a continuation of the thoracic aorta and runs down to where the aorta ends (by splitting into the two leg arteries). The abdominal aorta supplies oxygenated blood to all of the abdominal and pelvic organs and the legs. Like other sections of the aorta (the ascending aorta and aortic arch), the descending aorta is an arbitrary anatomic entity. The aorta is one continuous conduit that stems from the left ventricle of the heart to carry blood to most of the body. The descending aorta is nonetheless a hallowed and convenient division of the aorta. The descending aorta is known in medical Latin variously as the aorta descendens and the pars descendens aortae (under which headings it is often concealed in print medical dictionaries).

* * *

descending aorta n the part of the aorta from the arch to its bifurcation into the two common iliac arteries that passes downward in the thoracic and abdominal cavities

* * *

pars descendens aortae.

Medical dictionary. 2011.

Look at other dictionaries:

  • Descending aorta — Artery: Descending aorta Plan of the branches …   Wikipedia

  • descending aorta — noun the descending part of the aorta that branches into the thoracic and abdominal aortae • Hypernyms: ↑aorta * * * noun : the part of the aorta from the arch to its bifurcation that passes downward in the thoracic and abdominal cavities …   Useful english dictionary

  • descending aorta — (Order Mysida): Major unpaired blood vessel arising ventrally near posterior end of heart. Variously branched ventrally [Stachowitsch, 1992]. (Superorder Syncarida): Aorta [Stachowitsch, 1992]. (Order Euphausiacea): Major blood vessel arising… …   Crustacea glossary

  • 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… …   Medical dictionary

  • Aorta, descending — The descending aorta is the part of the aorta, the largest artery in the body, that runs down through the chest and the abdomen. The descending aorta starts after the arch of the aorta and ends by splitting into two great arteries (the common… …   Medical dictionary

  • Aorta — The aorta (pronounced IPA|/e(ɪ)ˈo(ʊ)ɹ.tə/) 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. [cite book last = Maton first …   Wikipedia

  • aorta — (Order Cladocera): Heart [Stachowitsch, 1992]. (Order Cladocera): Unpaired blood vessel extending ventroposteriorly from heart. Separated from heart by anteroventral aortic valve and splits distally into several branches [Stachowitsch, 1992].… …   Crustacea glossary

  • aorta — aortic, aortal, adj. /ay awr teuh/, n., pl. aortas, aortae / tee/. Anat. the main trunk of the arterial system, conveying blood from the left ventricle of the heart to all of the body except the lungs. See illus. under heart. [1570 80; < ML < Gk… …   Universalium

  • aorta — n.; pl. aortae or aortas the main artery of the body, from which all others derive. It arises from the left ventricle (ascending aorta), arches over the top of the heart (see aortic arch) and descends in front of the backbone (descending aorta),… …   The new mediacal dictionary

  • Esophageal branches of thoracic part of aorta — Infobox Artery Name = PAGENAME Latin = rami oesophageales partis thoracicae aortae GraySubject = 153 GrayPage = 600 Caption = Caption2 = BranchFrom = descending aorta BranchTo = Vein = esophageal veins Supplies = esophagus MeshName = MeshNumber …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”