Heart walls of the heart to valves by cartilaginous connections called chordae tendinae. These muscles prevent the valves from falling too far back when they close. During the relaxation phase of the cardiac cycle, the papillary muscles are also relaxed and the tension on the chordae tendineae is slight. As the heart chambers contract, so do the papillary muscles. This creates tension on the chordae tendineae, helping to hold the cusps of the atrioventricular valves in place and preventing them from being blown back into the atria. Two additional semilunar valves sit at the exit of each of the ventricles. 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,