noun, plural a·or·tas, a·or·tae [ey-awr-tee] /eɪˈɔr ti/. Anatomy.
- the main trunk of the arterial system, conveying blood from the left ventricle of the heart to all of the body except the lungs.
noun plural -tas or -tae (-tiː)
- the main vessel in the arterial network, which conveys oxygen-rich blood from the heart to all parts of the body except the lungs
1570s, from Medieval Latin aorta, from Greek aorte, term applied by Aristotle to the great artery of the heart, literally “what is hung up,” from aeirein “to lift, heave, raise,” of uncertain origin; related to the second element in . Used earlier by Hippocrates of the bronchial tubes. Related: Aortal; aortic.
n. pl. a•or•tas
- The large artery that is the main trunk of the systemic arterial system, arising from the base of the left ventricle, ending at the left side of the body of the fourth lumbar vertebra, dividing to form the right and left common iliac arteries, and whose parts are the ascending aorta, the aortic arch, and the descending aorta.
Plural aortas aortae (ā-ôr′tē)
- The main artery of the circulatory system, arising from the left ventricle of the heart in mammals and birds and carrying blood with high levels of oxygen to all the arteries of the body except those of the lungs.
The main See .)of the body; it carries from the left side of the to other throughout the body. (