<prompt> The incisura of arterial pulse corresponds with:SIS2Opening snapS3  <response>: Ans: B S2 Ref: l. Pal GK. Cardiac cycle. In: Textbook of medical physiology: Ahuja publishing house. 2007: 73: 601.Explanation:The dicrotic notch recorded directly from the central aorta is termed the incisura from the Latin, a cutting into . The incisura is sharply defined and undoubtedly is related to aortic valve closure. l See the following figure 