Coronary blood flow is usually predominantly controlled by_____________? A. Auto regulation B. Hormones C. Parasympathetic impulses D. Sympathetic impulse

Fastest conducting tissue in human heart _________________? A. AV node B. SA node C. Bundle of HisD. Purkinje fibers

Closure of aortic valve occurs before the following event_______________? A. Isovolumetric contractionB. Isovolumetric relaxation C. Pre-diastole D. Pre-systole

Cardiac index is related to ______________? A. cardiac output and body weightB. Cardiac output and body surface area C. Cardiac output and work of the heart D. Stroke volume and pulse rate

Stimulation of barorceptor leads to ________________? A. Increased blood pressure, increased heart rateB. Decreased B.P , decreased heart rate C. Increased B.P, decreased heart rate D. Decreased B.P, increased heart rate

Consider the following statements________________? A. Starling’s law of heart states that increase in force of contraction is directly related to cardiac ouput B. Staling’s law of heart states that the force of ventricular contraction is directly related to the end…

Minimum blood pressure is in_____________? A. Aorta B. Arteries C. CapillariesD. Venules

The largest function of the total peripheral resistance is due to _________________? A. VenulesB. Arterioles C. Capillaries D. Precapillary sphincters

Cardiac output is a measure of______________? A. Peripheral resistance X tissue fluid B. Peripheral resistance X cardiac rate C. Blood pressure X cardiac rateD. Heart rate X blood volume

The ventricular repolarization in ECG is best seen in_______________? A. “P” wave B. “Q” wave C. “R” waveD. “T” wave