RT Book, Section A1 David, Tirone E. A2 Cohn, Lawrence H. SR Print(0) ID 55920998 T1 Chapter 36. Aortic Valve Repair and Aortic Valve-Sparing Operations T2 Cardiac Surgery in the Adult, 4e YR 2012 FD 2012 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-163310-9 LK accesssurgery.mhmedical.com/content.aspx?aid=55920998 RD 2023/03/29 AB The aortic valve is a complex structure that is best described as a functional and anatomic unit, the aortic root. The aortic root has four components: aorto-ventricular junction or aortic annulus, aortic cusps, aortic sinuses, and sinotubular junction. In addition, the triangles beneath the commissures of the aortic valve, although part of the left ventricular outflow tract, are also important for valve function.