CSS :: Circulatory System Physiology
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81. |
Sphygnomanometer means an instrument that measures: |
A. |
Heart rate |
B. |
Blood pressure |
C. |
Pulse rate |
D. |
All of these |
Answer: Option B
Explanation:
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82. |
Heart beat is under the control of: |
A. |
Vagus nerve |
B. |
Glossopharyngeal nerve |
C. |
Autonomic system |
D. |
None of these |
Answer: Option C
Explanation:
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83. |
During diastole the: |
A. |
Blood enters the heart |
B. |
Blood leaves the heart |
C. |
Blood leaves the ventricle |
D. |
Blood enters the lungs |
Answer: Option B
Explanation:
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84. |
Heart beat is conducted by a nodal tissue made up of specialized muscles called: |
A. |
Myonemes |
B. |
Purkinjie fibres |
C. |
Telodendrites |
D. |
Collagen fibres |
Answer: Option A
Explanation:
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85. |
Physiology of blood circulation was first described by: |
A. |
William Harvy |
B. |
Carl Landsteiner |
C. |
Carl Correns |
D. |
None of these |
Answer: Option A
Explanation:
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86. |
Role of pace-maker is: |
A. |
To increase heart beat |
B. |
To decrease the heart beat |
C. |
To initiate the heart beat |
D. |
To control the blood supply to heart |
Answer: Option C
Explanation:
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87. |
Pulse is defined as: |
A. |
An alternate expansion and recoil of an artery |
B. |
Ventricular systole during which bllod is passed into ventricles of heart |
C. |
Clossure of semilunar valves at the entrance of aortae |
D. |
None of these |
Answer: Option A
Explanation:
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88. |
Electrocardiogram is: |
A. |
Recording of electrical activity in the heart |
B. |
Recording of passage of nerve impulses in the heart |
C. |
Recording of cardiac outputs in the heart |
D. |
None of these |
Answer: Option A
Explanation:
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89. |
P-wave in electrocardiogram is produced by: |
A. |
Activation of SA-Node |
B. |
Contraction of ventricles |
C. |
Discharge of impulse from AN-Node |
D. |
Beginning of ventricular relaxation |
Answer: Option A
Explanation:
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90. |
P-wave in the electrocardiogram is produced by: |
A. |
Beginning of ventricular relaxation |
B. |
Beginning of ventricular contraction |
C. |
Activation of SA-Node |
D. |
None of these |
Answer: Option A
Explanation:
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