91.
The alveolar epithelium in the lungs is
A
nonciliated columnar
B
nonciliated squamous
C
ciliated columnar
D
ciliated squamous
Answer :
nonciliated squamous
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92.
After deep inspiration, capacity of maximum expiration of lung is called
A
Total lung capacity
B
Functional residual capacity
C
Vital capacity
D
Romanovasky stain
Answer :
Vital capacity
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93.
Which one has the lowest value
A
Tidal volume
B
Vital capacity
C
Inspiratory reserve volume
D
Only endothelium
Answer :
Tidal volume
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94.
Which part of poppy plant is used to obtain the drug "Smack"?
A
Flowers
B
Latex
C
Leaves
D
Roots
Answer :
Latex
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95.
Heiring-Breuer reflex related to
A
Effect of pH on respiratory centre
B
Effect of CO2 on respiratory centre
C
Effect of nerves on respiratory centre
D
O
Answer :
Effect of nerves on respiratory centre
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96.
Toxic effect of carbon monoxide is due to its greater affinity for haemoglobin as compared to oxygen and it is
A
2 times
B
20 times
C
200 times
D
300 times
Answer :
300 times
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97.
When $$C{O_2}$$ concentration in blood increases, breathing becomes
A
shallower and slow
B
there is no effect on breathing
C
slow and deep
D
faster and deeper
Answer :
faster and deeper
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98.
Identify the wrong statement with reference to transport of oxygen.
A
Partial pressure of $${C{O_2}}$$ can interfere with $${{O_2}}$$ binding with haemoglobin
B
Higher $${H^ + }$$ conc. in alveoli favours the formation of oxyhaemoglobin
C
Low $${pC{O_2}}$$ in alveoli favours the formation of oxyhaemoglobin
D
Binding of oxygen with haemoglobin is mainly related to partial pressure of $${{O_2}}$$
Answer :
Higher $${H^ + }$$ conc. in alveoli favours the formation of oxyhaemoglobin
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99.
Signet ring cartilage of larynx is
A
Cricoid
B
Arytenoid
C
Thyroid
D
All of the above
Answer :
Cricoid
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100.
Vocal cords occur in
A
Pharynx
B
Larynx
C
Glottis
D
Bronchial tube
Answer :
Larynx
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