This website translates English to other languages using an automated tool. We cannot guarantee the accuracy of the translated text. The heart muscle is responsible for circulating blood throughout the body.
The heart has 4 chambers, 2 upper chambers atria and 2 lower chambers ventricles. Blood passes through a valve before leaving each chamber of the heart. The valves prevent the backward flow of blood.
The heart has four valves - one for each chamber of the heart. The valves keep blood moving through the heart in the right direction. The mitral valve and tricuspid valve are located between the atria upper heart chambers and the ventricles lower heart chambers.
A ventricle is one of two large chambers toward the bottom of the heart that collect and expel blood received from an atrium towards the peripheral beds within the body and lungs. In a four-chambered heart, such as that in humansthere are two ventricles that operate in a double circulatory system : the right ventricle pumps blood into the pulmonary circulation to the lungsand the left ventricle pumps blood into the systemic circulation through the aorta. The term "interventricular" means between the ventricles for example the interventricular septumwhile "intraventricular" means within one ventricle for example an intraventricular block.
Congenital heart defects are structural problems arising from abnormal formation of the heart or major blood vessels. At least 18 distinct types of congenital heart defects are recognized, with many additional anatomic variations. Recent progress in diagnosis and treatment surgery and heart catheterization makes it possible to fix most defects, even those once thought to be hopeless.
A normal heart has two upper and two lower chambers. The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, pump blood out of your heart.
Click here to view a larger image. The heart is an organ, about the size of a fist. It is made of muscle and pumps blood through the body.
The heart is a fist-sized muscle that pumps blood through the body 24 hours a day, days a year, without rest. The normal heart is made up of four parts: two atria on the top of the heart right atrium and left atriumand two ventricles right ventricle and left ventricle which are the muscular chambers on the bottom of the heart that provide the major power to pump blood. These four chambers are connected by valves that allow blood to move forward and prevent it from flowing backwards. Coronary arteries, or blood vessels, deliver a constant, nourishing supply of blood to the heart muscle itself.
Abnormalities of the heart chambers may be serious and even life-threatening. In hypoplastic left heart syndrome, the left-sided heart chambers, including the aorta, are underdeveloped. Infants born with this condition rarely survive more than two or three days.