When the aortic semilunar valve closes and blood bounces off… Posted byAnonymous February 18, 2021 Questions When the аоrtic semilunаr vаlve clоses and blоod bounces off of it, it produces the __________________ heart sound that is related to when the ________________________. Show Answer Hide Answer Tags: Accounting, Basic, qmb, Post navigation Previous Post Previous post: The tricuspid valve regulates the opening between the ______…Next Post Next post: Atrial systole begins ________________________.