241.
Double circulatory system means that blood A
Passes through two chamber
B
Passes two times through heart
C
A and B both
D
None of the above
Answer :
Passes two times through heart
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242.
What would be the heart rate of a person if the cardiac output is $$5\,L,$$ blood volume in the ventricles at the end of diastole is $$100\,mL$$ and at the end of ventricular systole is $$50\,mL?$$ A
50 beats per minute
B
75 beats per minute
C
100 beats per minute
D
125 beats per minute
Answer :
100 beats per minute
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243.
A drop of each of the following, is placed separately on four slides. Which of them will not coagulate? A
Blood serum
B
Sample from the thoracic duct of lymphatic system
C
Whole blood from pulmonary vein
D
Blood plasma
Answer :
Blood serum
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244.
Right sub clavian artery in Rabbit arises from A
Right common carotid artery
B
CArotico systemic aorta
C
Dorsal aorta
D
Innominate artery
Answer :
Right common carotid artery
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245.
What is true about leucocytes ? A
Their sudden fall in number is indication of blood cancer
B
These are produced in thymus
C
These are enucleated
D
These can squeeze out through the capillary walls
Answer :
These can squeeze out through the capillary walls
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246.
The pulmonary aorta aries from A
Left ventricle
B
Right ventricle
C
Left auricle
D
Right auricle
Answer :
Right ventricle
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247.
"Bundle of His" is group of A
Nerve fibers
B
Ganglia
C
Connective
D
Muscle fibers
Answer :
Muscle fibers
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248.
Blood circulation that starts in capillaries and ends in capillaries is called A
Portal circulation
B
Hepatic circulation
C
Cardiac arrest
D
None of the above
Answer :
Portal circulation
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249.
The blood circulation which starts and ends into capillaries is A
Renal circulation
B
Portal circulation
C
Hepatic circulation
D
Spasm in bronchial muscles
Answer :
Portal circulation
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250.
When heart beat is decreased than normal is called A
Bradicardia
B
Tachycardia
C
Hypocardia
D
Nicacardia
Answer :
Bradicardia
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