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Cardiovascular Ch.11
LaurenDavis-Block 6
Question | Answer |
---|---|
Apex | Point that is directed toward the left hip and rests on the diaphragm, approximately at the level of the fifth intercostal space. |
Base | Broad posterusuperior aspect from which the great vessels of the body emerge, points toward the right shoulder and lies beneath the second rib. |
Visceral Pericardium (Epicardium) | Tightly hugs the external surface of the heart and is actually part of the heart wall. |
Myocardium | Consists of thick bundles of cardiac muscle twisted and whorled into ringlike arrangements. |
Endocardium | A thin, glistening sheet of endothelium that lines the heart chambers. |
Atria | One of the four hollow chambers or cavities. Is lined with endocardium, which helps blood flow smoothly through the heart. |
Interventricular Septum | The septum that divides the heart longitudinally. |
Pulmonary Arteries | There is a left and a right, carries blood to the lungs, where oxygen is loaded and carbon dioxide is unloaded. |
Aorta | Blood returned to the left side of the heart is pumped out of the heart into the aorta from which systemic arteries branch to supply essentially all body tissues. |
Semilunar Valves | Guards the bases of the two large arteries leaving the ventricular chambers. |