Advanced Pathophysiology NR 507 Midterm Exam Questions with Verified Answers (Already Graded A)
How does blood flow through the heart? – ANS: Deoxygenated venous blood → Sup. Vena Cava → Right Atrium →Tricuspid (AV) →Empties into R. Ventricle (& it contracts) → Blood ejected through Pulmonary Valve → Pulmonary Artery → Lungs to be Oxygenated → Pulmonary Veins → L. Atrium → Mitral (AV) → L. Ventricle (pumps with each contraction) → Aortic Valve → Aorta → Body What is systole? - ANS: Contraction of the heart which pumps blood Diastole - ANS: Relaxation of the heart What produces S1 and S2 sound? - ANS: closing of the heart valves What produces S1? - ANS: The mitral and tricuspid valves which close in systole What produces S2 sound? - ANS: The closing of the aortic and pulmonic valves in diastole What is cardiac output? - ANS: the volume of blood pumped out by each ventricle per minute What is stroke volume? - ANS: amount of blood pumped out by each ventricle with contraction What determines cardiac output? - ANS: stroke volume and heart rate
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