271.
Tachycardia is
A
Fast heart rate
B
Slow heart rate
C
Stop heart rate
D
Normal heart rate
Answer :
Fast heart rate
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272.
Chordae tendinae are found in
A
Ventricles of brain
B
Ventricles of heart
C
Auricles of heart
D
Connection between bone
Answer :
Ventricles of heart
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273.
Spleen increases in size during malaria due to
A
More lymphocytes
B
Dead RBC
C
A and B both
D
Tricuspid valve opens
Answer :
A and B both
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274.
Acetyl Choline causes
A
Brady Cardia
B
Tachy Cardia
C
A and B both
D
None of the above
Answer :
Brady Cardia
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275.
Splenic artery arises from
A
anterior mesenteric artery
B
coeliac artery
C
posterior mesenteric artery
D
intestinal artery
Answer :
coeliac artery
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276.
The sound of lubb is produced during closure of
A
Bicuspid valve
B
Tricuspid valve
C
Semilunar valves
D
Both A and B
Answer :
Both A and B
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277.
Bundle of His is a network of
A
nerve fibres found throughout the heart
B
muscle fibres distributed throughout the heart walls
C
muscle fibres found only in the ventricle wall
D
nerve fibres distributed in ventricles
Answer :
muscle fibres found only in the ventricle wall
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278.
Breakdown product of haemoglobin is
A
Bilirubin
B
Iron
C
Biliverdin
D
Calcium
Answer :
Iron
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279.
In order to study blood circulation in rat, capillaries are observed in
A
Mesentery
B
Kidney
C
Liver
D
Skull and atlas
Answer :
Mesentery
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280.
Cardiac muscle fibers are differ from skeletal muscles because these are
A
Striated, involuntary
B
Non-striated-volvntary
C
Non striated involuntary
D
Legs
Answer :
Striated, involuntary
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