8636D932D0E54E9C9F75A8EB49455D77

8636D932D0E54E9C9F75A8EB49455D77 - Chapter 20 The Heart...

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Chapter 20 The Heart
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Position of the Heart Mediastinum Pericardium Epicardium Myocardium Endocardium
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Heart Surface
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Human heart
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Heart Posterior
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Heart Interior
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Human Heart Interior
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Surface of Valves
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Valves
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Circulation
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Circulation
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Coronary Arteries
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The Echo Image
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Echo Images
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Echo - Doppler
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Mitral Valve Prolapse
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Coronary Veins
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Human Heart
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Heart Tissue
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Conduction System
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Pacemakers Located in the right chest wall, a catheter is threaded through the subclavian vein, into the brachiocephalic vein, into the superior vena cava , then into the right atrium. The pacemaker overrides the impulse from the SA node.
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Action Potentials
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Action Potential – Ventricle
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P= wave from SA node through atria QRS = ventricular depolarization T wave = ventricular repolarization P-Q interval = time from atria contraction to beginning of ventricular contraction. Q-T interval = ventricular depolarization to repolarization.
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Note: Systole & Diastole
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Heart Valve Locations
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Cardiac Output CO = SV x HR SV = ml/beat HR = Heart Rate
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This note was uploaded on 11/10/2011 for the course PDBIO 220 taught by Professor Tomco during the Winter '09 term at BYU.

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8636D932D0E54E9C9F75A8EB49455D77 - Chapter 20 The Heart...

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