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Descending aorta

Descending aorta
Gray506.svg
Plan of the branches.
Gray530.png
The thoracic aorta, viewed from the left side.
Details
Precursor Dorsal aorta
Source Ascending aorta
Branches

Thoracic aorta

Abdominal aorta
Identifiers
Latin Aorta descendens,
pars descendens aortae
MeSH A07.231.114.056.372
Dorlands
/Elsevier
p_07/12616698
TA A12.2.10.001
FMA 3784
Anatomical terminology
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Thoracic aorta

The descending aorta is part of the aorta, the largest artery in the body. The descending aorta is the part of the aorta beginning at the aortic arch that runs down through the chest and abdomen. The descending aorta anatomically consists of two portions or segments, the thoracic and the abdominal aorta, in correspondence with the two great cavities of the trunk in which it is situated. Within the abdomen, the descending aorta branches into the two common iliac arteries which serve the pelvis and eventually legs.

The ligamentum arteriosum connects to the junction between the aortic arch and the descending aorta in foetal life. This artery later regresses as the ductus arteriosus.

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)



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