Heart
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each of the black spaces below before clicking
on it to display the answer.
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| Mediastinum | Area of thorasic cage where the heart is located
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| Coronary Sulcus | Horizontal groove of heart
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| Interventricular Sulcus | Vertical groove of heart
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| Atria | Two chambers of the heart above the coronary sulcus
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| Ventricles | Two chambers of the heart below the coronary sulcus
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| Coronary Arteries | Carry oxygen-rich blood to the heart, 1st branches of aorta
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| Two major coronary arteries | Right Coronary and Left Main Coronary
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| Right Coronary Artery | Supplies right inferior
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| Left Main Coronary | Supplies left anterior
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| Circumflex | Supplies left inferior
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| Pericardium | Serous membrane surrounding the heart (attached) and lining the pericardial cavity, reduces friction from pumping of the heart
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| Visceral Pericardium | Part of the pericardium that surrounds the heart
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| Parietal Pericardium | Part of the pericardium that lines the pericardial cavity
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| Pericardial Space | Space between the visceral and parietal pericardium layers
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| Epicardium | Thin, strong, outermost layer of the heart wall, becomes part of the pericardium
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| Myocardium | Second layer of heart wall, cardiac muscle, thickest layer, responsible for contractile activity
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| Endocardium | Innermost layer of heart wall, thinnest layer, coagulant resistant
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| Ischemia | Oxygen starvation of a tissue
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| Infarction | Death of tissue from oxygen starvation
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| Myocardial Infarction | Heart Attack
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| Conduction System | Responsible for heart stimulation
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| Electrical depolarization | Caused by Na+ entry into cell, leads to contraction (stimulated)
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| Electrical repolarization | Caused by K+ loss from cell, responsible for relaxation of cardiac muscle cells
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| Atrioventricular Valves | Valves between the atria and ventricals of the heart
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| Tricuspid | Right atrioventricular valve
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| Bicuspid (Mitral) | Left atrioventricular valve
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| Semilunar Valves | Valves at the bottom of the ventricals of the heart to allow blood to leave the heart
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| Pulmonary Valve | Right semilunar valve
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| Aortic Valve | Left semilunar valve
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| Systole | Contraction of chamber
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| Diastole | Relaxation of chamber
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Created by:
kcopeland10
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