A. Reflex hyperpnea
B. Reflex Hypercapnia
C. Reflex tachycardia
D. Reflex Hypercapnia
Increase in carotid sinus pressure produces__________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Increases heart rate
B. Decreases myocardial irritability
C. Increases force of contraction
D. Increases oxygen uptake by heart
The effects of Adrenaline on heart are all except__________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Isotonic relaxation
B. Isovolumetric relaxation
C. Isovolumetric contraction
D. Isotonic contraction
First heart sound occurs during the period of________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Cardiac efficiency
B. Cardiac index
C. Mean stroke volume
D. Mean arterial pressure
Cardiac output in L/min divided by heart rate equals_______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. 2.5
B. 4.25
C. 5.25
D. 9.5
Under resting condition the cardiac output is _______ L/ min ? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. AV node
B. SA node
C. SA node
D. Purkinje fibers
Conduction velocity is least in_______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Lasts till cardiac contraction
B. Longer than refractory period in skeletal muscle
C. A phase of cardiac cycle in which heart cannot be stimulated by any amount of stimulus
D. Corresponds with duration of action potential
E. All of the above
Absolute refractory period in heart______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Hyperplasia
B. Hypertrophy
C. Fatty infiltration
D. Increased amounts of fibrous connective tissue
A. Aorta
B. Artery
C. Arteriole
D. Vein
Peripheral resistance is maximum in_______________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs A. Does not operate in the failing heart
B. Does not operate during exercise
C. Explains the increase in cardiac output that occurs when venous return is increased
D. Explains the increase in cardiac output when the sympathetic nerves supplying the heart stimulated
Starling’s law of the heard________________? Read More »
Cardiovascular system, Medical Mcqs, Physiology Mcqs