Heart although this description is disputed, as the heart is likely to be slightly larger. Well-trained athletes can have much larger hearts due to the effects of exercise on the heart muscle, similar to the response of skeletal muscle. The heart has four chambers, two upper atria, the receiving chambers, and two lower ventricles, the discharging chambers. The atria open into the ventricles via the atrioventricular valves, present in the atrioventricular septum. This distinction is visible also on the surface of the heart as the coronary sulcus. There is an ear-shaped structure in the upper right atrium called the right atrial
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,