221.
If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non - functional, what will be the immediate effect? A
The flow of blood into the aorta will be slowed down
B
The 'pacemaker' will stop working
C
The blood will tend to flow back into the left atrium
D
The flow of blood into the pulmonary artery will be reduced
Answer :
The flow of blood into the pulmonary artery will be reduced
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222.
Blood pressure in the pulmonary artery is A
same as that in the aorta
B
more than that in the carotid
C
more than that in the pulmonary vein
D
less than that in the venae cavae
Answer :
more than that in the pulmonary vein
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223.
What is correct for blood group $$'O'?$$ A
No antigens but both $$a$$ and $$b$$ antibodies are present
B
$$A$$ antigen and $$b$$ antibody
C
Antigen and antibody both absent
D
$$A$$ and $$B$$ antigens and $$a, b$$ antibodies
Answer :
No antigens but both $$a$$ and $$b$$ antibodies are present
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224.
Which one of the following statements is correct regarding blood pressure? A
$$130/90\,mm\,Hg$$ is considered high and requires treatment
B
$$100/55\,mm\,Hg$$ is considered an ideal blood pressure
C
$$105/50\,mm\,Hg$$ makes one very active
D
$$190/110\,mm\,Hg$$ may harm vital organs like brain and kidney
Answer :
$$190/110\,mm\,Hg$$ may harm vital organs like brain and kidney
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225.
In the $$ABO$$ system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be A
$$B$$
B
$$O$$
C
$$AB$$
D
$$A$$
Answer :
$$AB$$
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226.
The pace maker in frog heart is A
SA Node
B
AV Node
C
Conus arterious
D
Heart muscles
Answer :
SA Node
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227.
Largest amount of urea in blood is found in A
Hepatic portal vein
B
Hepatic Artery
C
Coeliac artery
D
Renal Artery
Answer :
Renal Artery
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228.
The blood cancer is known as A
leukaemia
B
thrombosis
C
haemolysis
D
haemophilia
Answer :
leukaemia
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229.
Red pulp and white pulp are histological structure found in A
Tooth
B
Spleen
C
Bone
D
Liver
Answer :
Spleen
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230.
The rate of heart beat per minute is highest in - case of A
Elephant
B
Whale
C
Man
D
Subcutaneous
Answer :
Subcutaneous
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