Cardiac physiology ventricles, pushing open the tricuspid and mitral valves. As pressure drops within the ventricles, blood flows from the major veins into the relaxed atria and from there into the ventricles. Both chambers are in diastole, the atrioventricular valves are open, and the semilunar valves remain closed. The cardiac cycle is complete. One of the simplest methods of assessing the heart's condition is to listen to it using a stethoscope. In a healthy heart, there are only two audible heart sounds, called S1 and S2. The first heart sound S1, is the sound created by the closing of the atrioventricular valves
How Many Licks? Neptunes has additional vocals from American artists Kelis, Lil' Cease, and Snoop Dogg. "How Many Licks?" was praised by music critics after its release and in retrospective reviews; the Neptunes remix also received positive reviews. However, African-American studies professor Mark Anthony Neal criticized the song's treatment of black female sexuality. Commentators compared its content to Trinidadian-American rapper Nicki Minaj's 2014 single, "Anaconda". "How Many Licks?" peaked at number 75 on the "Billboard" Hot 100 chart and charted in several other countries, but was not as commercially successful as Lil' Kim's previous releases. The song's music video was directed by Francis