A. Increase in heart rate
B. Decreased vagal discharge
C. Increased sympathetic discharge
D. Decrease in blood pressure
Stimulation of baroreceptors results in_______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Due to closure of semilunar valves
B. Is occasionally split
C. Has longer duration than 1st heart sound
D. Marks the onset of diastole
2nd heart sound is characterized by all except______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Act as syncytium
B. Has multiple nuclei
C. Has gap junctions
D. Has branching
Heart muscle, true are all except_______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs 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
Isovolumetric relaxation ends immediately after________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Purkinje system
B. Bundle of HIS
C. Right and left bundle branches
D. AV node
Ventricular muscle receives impulses directly from the_______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Arteries
B. Arterioles
C. Capillaries
D. Venules
Distribution of blood flow is mainly regulated by the________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Chronotropic effect
B. Dromotropic effect
C. Bathmotropic
D. Ionotropic effect
Effect on force of contraction of heart is_____________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Liver
B. Brain
C. Kidney
D. Heart
Cardiac output is maximum to _________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. 0.7 seconds
B. 0.3 seconds
C. 0.7 seconds
D. 0.4 seconds
Absolute period when whole heart is in diastole is______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. 0.4 seconds
B. 0.8 seconds
C. 1.2 seconds
D. 1.6 seconds
Cardiac cycle duration in man is_______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs