A. Reflex hyperpnea
B. Reflex Hypercapnia
C. Reflex tachycardia
D. Reflex Hypercapnia
0
The effects of Adrenaline on heart are all except__________________?
0
First heart sound occurs during the period of________________?
A. Increases heart rate
B. Decreases myocardial irritability
C. Increases force of contraction
D. Increases oxygen uptake by heart
0
Cardiac output in L/min divided by heart rate equals_______________?
A. Isotonic relaxation
B. Isovolumetric relaxation
C. Isovolumetric contraction
D. Isotonic contraction
0
Under resting condition the cardiac output is _______ L/ min ?
A. Cardiac efficiency
B. Cardiac index
C. Mean stroke volume
D. Mean arterial pressure
0
Conduction velocity is least in_______________?
A. 2.5
B. 4.25
C. 5.25
D. 9.5
0
Absolute refractory period in heart______________?
A. AV node
B. SA node
C. SA node
D. Purkinje fibers
0
Increased functional demand on the heart produces increased size of the myocardium by _______________?
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
0
Peripheral resistance is maximum in_______________?
A. Hyperplasia
B. Hypertrophy
C. Fatty infiltration
D. Increased amounts of fibrous connective tissue
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