Heart valve chambers are lined with endocardium. Heart valves separate the atria from the ventricles, or the ventricles from a blood vessel. Heart valves are situated around the fibrous rings of the cardiac skeleton. The valves incorporate leaflets or cusps, which are pushed open to allow blood flow and which then close together to seal and prevent backflow. The mitral valve has two cusps, whereas the others have three. There are nodules at the tips of the cusps that make the seal tighter. The pulmonary valve has left, right, and anterior cusps. The aortic valve has left, right, and posterior cusps. The
How Many Licks? How Many Licks? "How Many Licks?" is a song by American rapper Lil' Kim featuring vocals by American musician Sisqó from her second studio album, "The Notorious K.I.M." (2000). It was released as the record's second single in 2000. Mario Winans and Sean Combs produced "How Many Licks?", and wrote it with Lil' Kim and Sisqó. The hip hop song samples the "Knight Rider" theme song, with lyrics expressing a woman's desire for oral sex and her sexual relationships with a variety of men. The chorus is a reference to the advertising slogan for Tootsie Pops. A remix by The