Chapter 19 Heart question n answers graded A+ 2023

Chapter 19 Heartfalse - correct answer T/F: the only arteries that carry oxygen-poor blood is the coronary arteries aortic valve - correct answer Left ventricular contraction propels blood through which valve? 4 - correct answer how many pulmonary veins are there? true - correct answer T/F: the ventricles begin to fill during ventricular diastole. ventricular diastole - correct answer The semilunar valves close during ______________ __________ ventricular diastole - correct answer The atrioventricular valves open during __________ ___________ false - correct answer T/F: Atrial contraction accounts for most of the ventricular filling. ventricular ejection - correct answer During which event of the cardiac cycle does aortic pressure reach its maximum? ventricular filling - correct answer During which event of the cardiac cycle do the atria both relax and contract? Isovolumetric relaxation - correct answer During which event of the cardiac cycle do both the atria and ventricles relax? true - correct answer T/F: The P wave of the ECG coincides with ventricular filling. 2,4,5,6 - correct answer Check all that are characteristics of cardiac muscle. 1. Cells are long and cylindrical.