Physiology 2130 Chapter Notes -Liga Uruguaya De Basketball, Sympathetic Nervous System, Stethoscope
29 Sep 2013
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Sits in your chest cavity btwn your lungs. During an avg life it will beat roughly 2. 5 billion times: have roughly 160 000 km of blood vessels that transport blood directly to almost every cell in your body. Right atrium and ventricle pump blood to the lungs. Left atrium and ventricle pump blood to the rest of the body. Valves in the heart ensure the one-way flow of blood through the heart and prevents the blood from backing up into the atrium when the ventricles contract: right atrioventricular (av) valve/tricuspid valve. Right atrium right ventricle: left atrioventricular (av) valve/bicuspid or mitral valve. Left atrium left ventricle: prevents the blood from backing up into the ventricle when it relaxes: Left ventricle aorta: chordae tendineae. Cords of collagen that attach to the valves at one end and to papillary muscles at the other.
