71.
Contraction of heart is called
A
Peristalsis
B
Systole
C
Diastole
D
Voluntary contraction
Answer :
Systole
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72.
Unpaired artery in Rabbit
A
Coeliac artery
B
Renal artery
C
Pulmonary
D
Femoral
Answer :
Coeliac artery
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73.
Blood pressure in the mammalian aorta is maximum during :
A
Diastole of the right ventricle
B
Systole of the left ventricle
C
Diastole of the right atrium
D
Systole of the left atrium
Answer :
Systole of the left ventricle
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74.
Impulse of heart beat originates from
A
S. A. node
B
A. V. node
C
Vagus nerve
D
Cardiac nerve
Answer :
S. A. node
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75.
Pace maker is
A
Instrument for measuring heart beat
B
Instrument of measuring pulse rate
C
Auriculo-ventricular node that provides impulse for heart beat
D
Sinu-auricular node that provides impulse for heart beat
Answer :
Sinu-auricular node that provides impulse for heart beat
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76.
Which artery supplies blood to the diaphragm
A
Phrenic
B
Splenic
C
Renal
D
Caudal
Answer :
Phrenic
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77.
The most active phagocytic white blood cells are:
A
neutrophils and eosinophils
B
lymphocytes and macrophages
C
eosinophils and lymphocytes
D
neutrophils and monocytes
Answer :
neutrophils and monocytes
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78.
In which of the following character a vein differs from an artery
A
Having valves to control flow of blood
B
Having narrow lumen
C
Having muscular wall
D
Pons varolii
Answer :
Having valves to control flow of blood
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79.
Ventricular contraction in command of
A
S.A. node
B
A.V. Node
C
Purkinje fibers
D
Papillary muscles
Answer :
S.A. node
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80.
In heart Rabbit bicuspid valve is situated in
A
Right auricle and pulmonary aorta
B
Post caval and auricle
C
Left auricle and left ventricle
D
Right auricle and right ventricle
Answer :
Left auricle and left ventricle
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