CCI practice exam with 100% correct solutions 2024

The second heart sound is caused by closure of what two valves? correct answersAortic and pulmonic What phase of the cardiac cycle immediately follows closure of the semilunar valves and precedes the opening of the AV valves? correct answersIsometric relaxation What percentage of ventricular filling normally results from atrial contraction? correct answers15-20% Peripheral venous pressure is the same as what pressure? correct answersRight atrial Which hemodynamic measurement most directly reflects left ventricular afterload? correct answersMean BP In a normal patient with a fixed cardiac output the mean arterial blood pressure is determined cheifly by? correct answersAfterload The rate induced regulation of the force of contraction, sometimes called the staircase, treppe, or bowdich effect is? correct answersRapid HR increases the force of contraction Which class of vessels has the capacity to store the largest volume of blood? correct answersSystemic veins Closure of the semilunar heart valves is associated with a hemodynamic what? correct answersDiacrotic notch Central venous pressure is the same as what other pressure? correct answersRight atrial The amount of blood pumped from each ventricle during a single systole is the? correct answersStroke volume The naturally occurring neurotransmitter liberated at the parasympathetic nerve junction is? correct answersAcetylcholine What is the primary effect of vagal nerve stimulation on the heart? correct answersDecreases automaticity Baro-Receptors in the aortic arch are termed? correct answersStretch receptors Mild depression in ventilation results in? correct answersPositive chronotropism