IRENE GOLD BOARDS Questions and CORRECT Answers

Use Gonsalve's BSR Quizlet for cardiovascular review: flash-cards/ flash-cards/ - Use Gonsalve's BSR Quizlet for cardiovascular review: flash-cards/ flash-cards/ What 2 ways can blood enter the heart? - →Superior vena cava →Inferior vena cava Blood enters the heart via SVC and IVC but there is another exception. What is it? - Azygous veins The Azygous vein drains where? - SVC What part of the heart is this? → P-wave starts at sinoatrial node in crista terminalis → impulse travels to AV node - Right Atrium What happens when there is a SA node impulse to AV node and delayed (P-R) interval? - AV Nodal Delay What part of the heart is this? →end of diastole 120ml →tricuspid valve closes S-1 →heart sound: isovolumetric contraction - Right ventricle Name this EKG: → QRS complex (ventricular contract) - Ventricular depolarization What part of the heart is this? → mid-systole (halfway through)= enough pressure to blow open pulmonic semilunar valves - pulmonary artery What part of the heart is this? → blood exits via 2 pulmonary arteries to lungs - pulmonary artery What carries DE-O2 blood? - pulmonary artery What carries DE-O2 blood? - umbilical artery Ventricular filling is ____% passive and ____% active - 80% passive 20% active from atrial contraction SA node impulse to AV node is shown as what on an ECG? - P-R interval At the end of diastole the right ventricle contains _______ amount of blood - 150ml S1 = S2 = - →AV Valves - S1 →Semilunar - S2 QRS = - Ventricular depolarization + consequent contraction Isovolumetric contraction begins at ____ and ends as semilunar valves open - S1 Isovolumetric Relaxation begins at ____ and ends as the AV valves open - S2 The highest concentration of blood O2 is found in the - Cardiac system Pulmonary vein and umbilical vein in fetus are the only veins that carry - Oxygenated blood Pulmonary artery and umbilical artery in fetus are the only arteries that - carry Deoxygenated blood START PAGE 2: ELECTROCARDIOGRAM P-wave= - atrial depolarization - atrium contracts P-R Interval - AV nodal delay On an ECG isovolumetric contraction is represented by - R The AV node sends its impulse through the _______ into _______ - →Bundle of His →Purkinje Fibers The right Bundle of His is aka - Moderator Band