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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.
Histopathological image of dissecting aneurysm of descending thoracic aorta in a patient without evidence of Marfan's trait. The damaged aorta was surgically removed and replaced by artificial vessel. Victoria blue & HE stain. Aortic dissection; Thoracic aortic aneurysm
Aortic dissection; Stanford type B dissection of the descending part of the aorta (3), which starts from the left subclavian artery and extends to the abdominal aorta (4). The ascending aorta (1) and aortic arch (2) shown in the image are not involved in this condition.
The descending aorta has two parts. The aorta begins to descend in the thoracic cavity and is consequently known as the thoracic aorta. After the aorta passes through the diaphragm, it is known as the abdominal aorta. The aorta ends by dividing into two major blood vessels, the common iliac arteries and a smaller midline vessel, the median ...
The aortic arch, arch of the aorta, or transverse aortic arch (English: / eɪ ˈ ɔːr t ɪ k / [1] [2]) is the part of the aorta between the ascending and descending aorta. The arch travels backward, so that it ultimately runs to the left of the trachea .
Anatomy figure: 21:06-06 at Human Anatomy Online, SUNY Downstate Medical Center - "Branches of the ascending aorta, arch of the aorta, and the descending aorta." thoraxlesson5 at The Anatomy Lesson by Wesley Norman (Georgetown University) (paravertebralregion) Atlas image: abdo_wall70 at the University of Michigan Health System
Right-sided aortic arch is a rare anatomical variant in which the aortic arch is on the right side rather than on the left. During normal embryonic development, the aortic arch is formed by the left fourth aortic arch and the left dorsal aorta.
By far the most common site for tearing in traumatic aortic rupture is the proximal descending aorta, near where the left subclavian artery branches off from the aorta. [7] The tethering of the aorta by the ligamentum arteriosum makes the site prone to shearing forces during sudden deceleration.