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
Map of the Human Heart Map of the Human Heart Map of the Human Heart (also called Carte du Tendre and La Carte du Tendre ) is a 1993 film by New Zealand director Vincent Ward. The script for "Map of the Human Heart" was written by Australian author Louis Nowra, using a 10-page treatment Ward had written a year earlier as his guide. "Map of the Human Heart", set mostly before and during the Second World War, centres on the life of Avik, a Canadian Inuit boy. The film stars Robert Joamie and Jason Scott Lee as the youth and adult Avik. His love,