aorta definition
Aorta: The largest artery in the body, the aorta arises from the left ventricle of the heart, goes up (ascends) a little ways, bends over (arches), then goes down (descends) through the chest and through the abdomen to where ends by dividing into two arteries called the common iliac arteries that go to the legs.natomically, the aorta is traditionally divided into the ascending aorta, the aortic arch, and the descending aorta. The descending aorta is, in turn, subdivided into the thoracic aorta (that descends within the chest) and the abdominal aorta (that descends within the belly). Full Definition of AORTA. : the great arterial trunk that carries blood from the heart to be distributed by branch arteries through the body — see heart illustration.— aor·tic \-ˈȯr-tik\ adjective.See aorta defined for English-language learners. See aorta defined for kids. ADVERTISEMENT. the great arterial trunk that carries blood from the heart to be distributed by branch arteries through the body — see heart illustration. — aor·tic \-ˈȯr-tik\ adjective. See aorta defined for English-language learners. The aorta (/eɪˈɔrtə/) is the main artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, where it splits into two smaller arteries (the common iliac arteries).The aorta distributes oxygenated blood to all parts of the body through the systemic circulation.he aorta (/eɪˈɔrtə/) is the main artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, where it splits into two smaller arteries (the common iliac arteries). The aorta distributes oxygenated blood to all parts of the body through the systemic circulation. Noun. 1. aorta-the large trunk artery that carries blood from the left ventricle of the heart to branch arteries. arteria, arterial blood vessel, artery-a blood vessel that carries blood from the heart to the body.ascending aorta-the ascending part of the aorta as it emerges from the left ventricle.he main artery of the mammalian circulatory system, conveying blood from the left ventricle of the heart to all the other arteries except the pulmonary artery. aortḗ literally, something hung, carried; akin to aeirein aeírein to, lift]. carry•a′or, tic•a′or, tal. adj Medical Definition of AORTA. : the large arterial trunk that carries blood from the heart to be distributed by branch arteries through the body. the great arterial trunk that carries blood from the heart to be distributed by branch arteries through the body — see heart illustration. — aor·tic \-ˈȯr-tik\ adjective. See aorta defined for English-language learners. All rights reserved. The aorta is the largest artery in the body. The aorta begins at the top of the left ventricle, the heart's muscular pumping chamber. The heart pumps blood from the left ventricle into the aorta through the aortic valve.Three leaflets on the aortic valve open and close with each heartbeat to allow one-way flow of blood.he aorta begins at the top of the left ventricle, the heart's muscular pumping chamber. The heart pumps blood from the left ventricle into the aorta through the aortic valve. Three leaflets on the aortic valve open and close with each heartbeat to allow one-way flow of blood. noun. The aorta is defined as the main artery of the body, transporting blood out of the heart to the smaller arteries that distribute it to the limbs and all organs except for the lungs.An arterial blood vessel that takes blood from the heart to the rest of the body is an example of an aorta.oun. The aorta is defined as the main artery of the body, transporting blood out of the heart to the smaller arteries that distribute it to the limbs and all organs except for the lungs. Medical Definition of AORTIC VALVE. : the semilunar valve separating the aorta from the left ventricle that prevents blood from flowing back into the left ventricle.What made you want to look up aortic valve?edical Definition of AORTIC VALVE. : the semilunar valve separating the aorta from the left ventricle that prevents blood from flowing back into the left ventricle. What made you want to look up aortic valve? Anatomically, the aorta is traditionally divided into the ascending aorta, the aortic arch, and the descending aorta. The descending aorta is, in turn, subdivided into the thoracic aorta (that descends within the chest) and the abdominal aorta (that descends within the belly).The aorta gives off branches that go to the head and neck, the arms, the major organs in the chest and abdomen, and the legs.natomically, the aorta is traditionally divided into the ascending aorta, the aortic arch, and the descending aorta. The descending aorta is, in turn, subdivided into the thoracic aorta (that descends within the chest) and the abdominal aorta (that descends within the belly). Aortic dissection and aortic aneurysm. An aortic dissection is a serious condition in which the inner layer of the aorta, the large blood vessel branching off the heart, tears.Blood surges through the tear, causing the inner and middle layers of the aorta to separate (dissect).ortic dissection and aortic aneurysm. An aortic dissection is a serious condition in which the inner layer of the aorta, the large blood vessel branching off the heart, tears.
The aorta is the main artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, where it splits into two smaller arteries (the common iliac arteries).