21+ Aortic Arch Anatomy Isthmus

21+ Aortic Arch Anatomy Isthmus. The aortic isthmus is the part of the aorta just distal to the origin of the left subclavian artery at the site of the ductus arteriosus. The aortic arch is the part of the aorta between the ascending aorta and thoracic descending aorta.

By411 Aortic
By411 Aortic from www.clevelandclinic.org
Brachiocephalic artery, which supplies blood flow to the right arm and right carotid. The aorta is the main trunk of a series of vessels which convey the oxygenated blood to the tissues of the body for their nutrition. Subscribe to learn interesting facts about the human body every day.

Curved section at the top of the aorta that bends backward connecting the ascending and descending portions of the aorta.

The aorta can be divided into thoracic and abdominal parts (the thoracic aorta pierces the diaphragm to enter the abdominal cavity, becoming the abdominal aorta). In addition, the ascending aorta, aortic arch and the thoracic part of the descending aorta are sometimes together referred to as the as the aortic arch transitions into the thoracic part of the descending aorta, it forms a small stricture called the aortic isthmus, which is followed by a dilatation. Distinct from this diffuse and moderate stenosis at the isthmus is the condition known as coarctation of the aorta, or marked stenosis often amounting to complete. The sharpness of the angle can be different among individuals.


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