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
The Heart String & How to Pull It The Heart String & How to Pull It The Heart String & How to Pull It is the third album by Scottish rock band Sucioperro, released on 7 March 2011 by Xtra Mile Recordings. The band financed the making of the album and completed most of the recording themselves at their beastin' studio, The Lair. The record was produced by the band, mixed by Chris Sheldon, and mastered by Chris Gordon. The artwork was once again done by bassist Stewart Chown, in collaboration with longtime Sucioperro photographer Gordon Burniston. In order to fund the publication and promotion of the album,