descending aorta

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Related to descending aorta: femoral artery

de·scend·ing a·or·ta

the part of the aorta continuing distal (inferior) to the aortic arch, further divided into the thoracic aorta and the abdominal aorta.

descending aorta

The part of the aorta that extends from the aortic arch into the thorax and abdomen.

descending aorta

Etymology: L, descendere, to descend; Gk, aerein, to raise
the main portion of the aorta, consisting of the thoracic aorta and the abdominal aorta, which continues from the aortic arch into the trunk of the body. It supplies many structures, including the esophagus, lymph glands, ribs, stomach, liver, spleen, intestines, kidneys, reproductive organs, and, eventually, the lower limbs. See also aorta.


pl. aortae, aortas [L.] the great artery arising from the left ventricle, being the main trunk from which the systemic arterial system proceeds. See Table 9. See also aortic.

abdominal aorta
the part of the descending aorta within the abdomen.
ascending aorta
the first part of the aorta which passes dorsally and cranially.
descending aorta
the aorta after it turns caudally at the aortic arch.
overriding aorta
see overriding aorta.
supravalvular aorta
the portion of aorta immediately above the aortic valve.
terminal aorta
the segment of the aorta immediately before it divides into the iliac arteries.
thoracic aorta
the part of the descending aorta within the thorax.
References in periodicals archive ?
Microscopically, severe atherosclerotic lesions were found in the ascending aorta, descending aorta, brachiocephalic trunks (Fig 2A), pulmonary arteries, carotid arteries, brachial arteries, coronary arteries (Fig 2B), mesenteric arteries (Fig 2C), and femoral arteries (Fig 2D).
The most widely used classification system for dissection is the Stanford classification: a dissection in the ascending aorta is considered type A and dissection in the descending aorta distal to the left subclavian artery origin is considered type B.
Contrast echocardiography can confirm the presence of shunting into the descending aorta.
Magna-Lab's Cardiac View Probe is a transesophageal receiving coil designed to operate in conjunction with an MRI system to non-invasively aid in the production of high resolution MRI images of the aortic arch, the descending aorta and the coronary vessels of the heart.
Type B aortic dissections begin in the descending aorta, may extend into the abdomen and, if uncomplicated by rupture or malperfusion, can be treated with medication as a first-line intervention.
Zara Roberts, from Llangollen, is lucky to be alive after she tore the descending aorta to her heart, broke five ribs, fractured her ankle and elbow, punctured a lung and suffered severe brain injuries.
In patients who survive to reach the hospital, the most common site of injury is the proximal descending aorta (65%), followed by the ascending aorta and arch (14%), and 12% in the distal descending aorta.
The delivery catheter containing the constrained stent was deployed via the introducer sheath with the proximal end of the graft occluding the LSA at the 'landing zone', as placement more distally was deemed unsuitable owing to the angulation between the aortic arch and the descending aorta.
The NeuroFlo treatment is accomplished with a unique, dual-balloon catheter placed in the descending aorta that works by increasing blood flow to the brain via restricting flow in the descending aorta.
Other approaches have been used, including the 1) left anterolateral thoracotomy with mammary and proximal ascending aorta connection, 2) right anterolateral thoracotomy with proximal ascending aorta connection and distal right coronary artery anastomosis, 3) posterolateral thoracotomy with proximal descending aorta connection, and 4) partial sternotomy for the mammary left anterior descending (LAD) artery anastomosis.
An extensive examination with the TEE followed and demonstrated a previously undiagnosed clot in the descending aorta.