Vessel
Ascending aorta
The upward aortic route between the root and arch
High-yield
The coronary-bearing root and tubular ascending segment are related but distinct anatomical regions.
Overview
The ascending aorta carries blood upward from the aortic root within the pericardial sac. Its tubular segment approaches the arch behind the upper sternum. The coronary arteries arise from the root at its proximal end, rather than from the usual tubular portion.
Reference facts
- Origin
- The aortic root above the left ventricular outlet
- Course
- Upward within the pericardial sac toward the aortic arch, anterior to the right pulmonary artery
- Branches
- Coronary origins are in the root; the tubular ascending segment normally has no major branches
- Supplies
- Carries systemic output onward, with proximal coronary branches serving the heart
- Drains to
- Continues into the aortic arch
Clinical correlation
A dissection involving the ascending aorta is Stanford type A, regardless of where the tear began. Proximal extension can affect the valve, coronary flow or pericardial space.
Frequently asked questions
Where does the ascending aorta originate?
The aortic root above the left ventricular outlet.
What does the ascending aorta supply?
The ascending aorta supplies the carries systemic output onward, with proximal coronary branches serving the heart.
Where does the ascending aorta drain to?
The ascending aorta drains to the continues into the aortic arch.
What are the branches of the ascending aorta?
Coronary origins are in the root; the tubular ascending segment normally has no major branches.