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13 terms

Module 3 circulation

Ahs 101
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Left Artrim
Receives blood high in oxygen content as it returns from the lungs.
Left Ventricle
Has the thickest wall, pimps oxygenated blood to all part of the body.
Tricuspid Valve
Closes when right ventricle pumps in order to prevent back flow into the right atrium.
Pulmonary Semilunar Valve
Located between right ventricle and pulmonary artery. When right ventricle has emptied, this valve closes in order to prevent back flow into the right ventricle.
Mitral Valve (Bicuspid Valve)
Prevents blood from returning to the left atrium.
Aortic Semilunar Valve
Located between the left ventricle and the aorta. Prevents return of aortic blood into left ventricle.
Septum
Thick muscular wall divides the right and left of the heart.
Interatrial septum
Upper part of this partition of septum.
Interventricular septum
Lower partition of the septum
Epicardium
outermost layer of the heart
Endocardium
Inner layer of the heart
Myocardium
thick middle muscle layer of the heart; pumps blood through the circulatory system
Pulmonary Valve
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