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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