Now, following the above steps: 1  The parent hydrocarbon chain has 23 carbons. It is called tricosa-. 2  The functional groups with the highest precedence are the two ketone groups. The groups are on carbon atoms 3 and 9. 3  The side chains are: an ethyl- at carbon 4, an ethyl- at carbon 8, and a butyl- at carbon 12.
1 doctor agreed: 1  AORTIC REGURGITATION: Aortic regurgitation is reflux of blood through an incompetent aortic valve into the left ventricle during ventricular diastole (relaxation). During ventricular systole (contraction), blood is pumped from the left ventricle into the aorta. Because of a leaky aortic valve, the pumped blood returns to the left ventricle.
Definition. Aortic regurgitation is a heart condition in which the valve between the left ventricle (lower left heart chamber) and the aorta (the major blood vessel leaving the heart) is not working properly. ... This increased work gradually causes the left ventricle to enlarge. ...ortic valve is located between the left ventricle of the heart and the aorta (the largest ... of the aortic valve with age (most common in elderly); Scarring of the aortic valve caused ... Balloon valvuloplasty âA balloon device is passed through the arteries to open or enlarge the stenotic ...