Hamad Cardiovascular system 25/07/2021 A. 0.4 seconds B. 0.8 seconds C. 1.2 seconds D. 1.6 seconds Related Mcqs: Under resting condition the cardiac output is _______ L/ min ?A. 2.5 B. 4.25 C. 5.25 D. 9.5... Parasympathetic stimulation of heart causes______________?A. SA node decreases firing B. Increased AV node excitability C. Decreased ventricular contraction D. Tachycardia... The ventricular repolarization in ECG is best seen in_______________?A. “P” wave B. “Q” wave C. “R” wave D. “T” wave... Ventricular muscle receives impulses directly from the_______________?A. Purkinje system B. Bundle of HIS C. Right and left bundle branches D. AV node... Isovolumetric relaxation ends immediately after________________?A. AV Valve closes B. When ventricular pressure falls below aortic pressure C. When ventricular pressure falls below atrial pressure D. None of the above...
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