Examlex
-How did this cartoon, which was published in the New York Graphic shortly after Custer's defeat at the Battle of Little Big Horn in 1876, depict American Indians like Sitting Bull?
Semilunar Valves
Heart valves located at the bases of the large arteries that leave the heart; they prevent blood from flowing back into the heart.
AV Valves
The atrioventricular valves, consisting of the tricuspid and mitral valves, regulate blood flow from the atria to the ventricles in the heart.
Left Ventricle
The chamber of the heart that receives oxygen-rich blood from the left atrium and pumps it out to the body through the aorta.
Ventricular Systole
Ventricular systole is the phase of the cardiac cycle during which the ventricles contract, pumping blood out of the heart and into the circulatory system.
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