171.
Which organ is by passed in Foetal Circulation
A
Heart
B
Brain
C
Lung
D
Liver
Answer :
Lung
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172.
Maximum surface area of Circulating system is seen in
A
Heart
B
Capillaries
C
Arterioles
D
Veins
Answer :
Capillaries
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173.
Antigens are present
A
inside the nucleus
B
on cell surface
C
inside the cytoplasm
D
on nuclear membrane
Answer :
on cell surface
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174.
An adult human with average health has systolic and diastolic pressures as
A
$$70\,mm\,Hg$$ and $$120\,mm\,Hg$$
B
$$120\,mm\,Hg$$ and $$80\,mm\,Hg$$
C
$$50\,mm\,Hg$$ and $$80\,mm\,Hg$$
D
$$80\,mm\,Hg$$ and $$80\,mm\,Hg$$
Answer :
$$120\,mm\,Hg$$ and $$80\,mm\,Hg$$
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175.
Filter apparatus for dead R.B.C is
A
Spleen + Kdney
B
Liver + Kidney
C
Spleen + Liver + Kidney
D
Liver + Spleen
Answer :
Spleen + Liver + Kidney
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176.
Heart of frog differs from that of rabbit by presence of
A
Sinus venosus
B
Four chambers
C
Mitral valve
D
Two aortae
Answer :
Sinus venosus
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177.
The heart sound "DUP" is Produced when
A
Mitral valve opens
B
Mitral valve closes
C
Semilunar valve at the base of aorta closes
D
Tricuspid valve opens
Answer :
Semilunar valve at the base of aorta closes
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178.
In humans, blood passes from the post caval to the diastolic right atrium of heart due to.
A
pushing open of the venous valves
B
suction pull
C
stimulation of the sino auricular node
D
pressure difference between the post caval and atrium
Answer :
suction pull
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179.
Heart covering is
A
Peritoneum
B
Pleural membrane
C
Pericardium
D
Visceral membrane
Answer :
Pericardium
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180.
Reduction in pH of blood will
A
reduce the rate of heart beat
B
reduce the blood supply to the brain
C
decrease the affinity of haemoglobin with oxygen
D
release bicarbonate ions by the liver
Answer :
decrease the affinity of haemoglobin with oxygen
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