C C 306M Chapter 5 Notes.docx

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Classical civilization
C C 306M
Todd Curtis

Chapter 5 Cardiovascular System Notes THE HEART:  Muscular organ that pumps blood throughout the body  Has four chambers o Right atrium [upper chamber] o Left atrium [upper chamber] o Right ventricle [lower chamber] o Left ventricle [lower chamber]  Divided into right and left portions by the interatrial septum and the interventricular septum  Heart valves open and close to maintain the one-way flow of blood through the heart  Has 3 layers o Endocardium  Lines the interior cavities of the heart o Myocardium  Thick, muscular layer o Epicardium  Outer membrane  Pericardium – a loose, protective sac enclosing the heart Angi/o, vas/o, vascul/o Vessel Aort/o Aorta Arteri/o Artery Ather/o Fatty (lipid) paste Atri/o Atrium Cardi/o Heart Coron/o Circle or crown My
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