A. SA node decreases firing
B. Increased AV node excitability
C. Decreased ventricular contraction
D. Tachycardia
Parasympathetic stimulation of heart causes______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Closure of the pulmonary valve
B. Rapid filling of the left ventricle
C. Closure of the aortic valve
D. Contraction of the atria
The dicrotic notch on the aortic pressure curve is caused by_________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs 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
The function of Carotid body is_______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Volume of the circulation per minute
B. Peripheral vascular resistance
C. Pulse Pressure
D. Total Capacity
What is common between systemic and pulmonary circulation is_____________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. 1 to 4 m/sec
B. 5 to 8 m/sec
C. 9 to 12 m/sec
D. More than 12 m/sec
The velocity of conduction in the Purkinjie fibers of the heart is__________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Reynolds number < 2000
B. Decrease in velocity of blood
C. Decrease in density of blood
D. Increase in diameter of blood vessel
Which of the following increases turbulence in blood flow ? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Higher filtration pressure
B. Lower filtration pressure
C. Both of the above
D. None
Glomerular capillary pressure differ from other capillaries of body in______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. The loudest sound is the diastolic pressure
B. Systolic pressure estimation tends to be lower than those make by palpatory method
C. The first sound heard is the systolic pressure
D. The sounds that are heard are generated in heart
In determining blood pressure by auscultatory method_____________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Preload
B. After load
C. Heart rate
D. Myocardial contractility
The following factors increase the cardiac output except______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. is capable of generating impulses
B. Has rich sympathetic innervation
C. Has poor cholinergic innervation
D. Generates impulses at the highest rate
SA node acts as a pacemaker of the heart because of the fact that it_________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs