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The Heart . Vertebrate Heart Structure. Vena cava Right atrium Right ventricle Pulmonary artery Pulmonary vein Left atrium Left ventricle Aorta. Normal hearts LV LV and AO RV. Control of the Heart. Myogenic Beat Sinoatrial node
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Vertebrate Heart Structure • Vena cava • Right atrium • Right ventricle • Pulmonary artery • Pulmonary vein • Left atrium • Left ventricle • Aorta
Normal hearts LV LV and AO RV
Control of the Heart Myogenic Beat • Sinoatrial node • Impulse spreads through atria to AV node • Both atria contract • AV node • AV node fires impulse • Ventricles contract
Electrocardiogram • P wave • QRS wave • T wave
Blood Pressure • What is it? • Systolic • Diastolic