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.Management Sciences
Category: Cardiovascular system
Cardiac output is not affected by __________________?
A. Heart rate
B. Peripheral resistance
C. Systolic blood pressure
D. Venous return
Stimulation of barorceptor leads to ________________?
A. Increased blood pressure, increased heart rate
B. Decreased B.P , decreased heart rate
C. Increased B.P, decreased heart rate
D. Decreased B.P, increased heart rate
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 method
C. The first sound heard is the systolic pressure
D. The sounds that are heard are generated in heart
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
Fastest conducting tissue in human heart _________________?
A. AV node
B. SA node
C. Bundle of His
D. Purkinje fibers
Effect on force of contraction of heart is_____________?
A. Chronotropic effect
B. Dromotropic effect
C. Bathmotropic
D. Ionotropic effect
First heart sound occurs during the period of________________?
A. Isotonic relaxation
B. Isovolumetric relaxation
C. Isovolumetric contraction
D. Isotonic contraction
Consider the following statements________________?
A. Starling’s law of heart states that increase in force of contraction is directly related to cardiac ouput
B. Staling’s law of heart states that the force of ventricular contraction is directly related to the end diastolic volume
C. Both A and B
D. None of the above
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