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
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,