Chambers and Valves SEPTUM divides into R and L halves Upper chambers RIGHT ATRIUM and LEFT ATRIUM – Lower chambers RIGHT VENTRICLE and LEFT VENTRICLE – Four heart valves permit flow of blood in one direction TRICUSPID VALVE between right atrium and right ventricle – BICUSPID (MITRAL) VALVE between left atrium and left ventricle – Semilunar valves are located where blood leaves the heart - PULMONARY SEMILUNAR VALVE and AORTIC SEMILUNAR VALVE PHYSIOLOGY OF THE HEART The heart is a double pump. When the heart beats… Right Heart Deoxygenated blood flows into heart from vena cava right atrium tricuspid valve right ventricle pulmonary semilunar valve pulmonary artery lungs (for oxygen)
Chambers and Valves SEPTUM divides into R and L halves Upper chambers – RIGHT ATRIUM and LEFT ATRIUM Lower chambers – RIGHT VENTRICLE and LEFT VENTRICLE Four heart valves permit flow of blood in one direction TRICUSPID VALVE – between right atrium and right ventricle BICUSPID (MITRAL) VALVE – between left atrium and left ventricle Semilunar valves are located where blood leaves the heart - PULMONARY SEMILUNAR VALVE and AORTIC SEMILUNAR VALVE PHYSIOLOGY OF THE HEART The heart is a double pump. When the heart beats… Right Heart Deoxygenated blood flows into heart from vena cava right atrium tricuspid valve right ventricle pulmonary semilunar valve pulmonary artery lungs (for oxygen)
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