Parasympathetic stimulation of heart causes______________? A. SA node decreases firing B. Increased AV node excitability C. Decreased ventricular contraction D. Tachycardia

The dicrotic notch on the aortic pressure curve is caused by_________________? A. Closure of the pulmonary valve B. Rapid filling of the left ventricleC. Closure of the aortic valve D. Contraction of the atria

The function of Carotid body is_______________? A. Measures the change in Po2 in arterial blood B. Measures Po2 in venous blood C. Measures the changed in CO2 in arterial blood D. Measures the change in CO2 in venous blood

What is common between systemic and pulmonary circulation is_____________? A. Volume of the circulation per minute B. Peripheral vascular resistance C. Pulse Pressure D. Total Capacity

The velocity of conduction in the Purkinjie fibers of the heart is__________________? A. 1 to 4 m/sec B. 5 to 8 m/sec C. 9 to 12 m/sec D. More than 12 m/sec

Which of the following increases turbulence in blood flow ? A. Reynolds number < 2000 B. Decrease in velocity of blood C. Decrease in density of bloodD. Increase in diameter of blood vessel

Glomerular capillary pressure differ from other capillaries of body in______________? A. Higher filtration pressure B. Lower filtration pressure C. Both of the above D. None

In determining blood pressure by auscultatory method_____________? A. The loudest sound is the diastolic pressure B. Systolic pressure estimation tends to be lower than those make by palpatory methodC. The first sound heard is the systolic pressure D. The sounds…

The following factors increase the cardiac output except______________? A. PreloadB. After load C. Heart rate D. Myocardial contractility

SA node acts as a pacemaker of the heart because of the fact that it_________________? A. is capable of generating impulses B. Has rich sympathetic innervation C. Has poor cholinergic innervationD. Generates impulses at the highest rate