131. Tracheal rings in Rabbit are

A Complete
B Incomplete
C Dorsally incomplete
D Lateral Incomplete
Answer :   Dorsally incomplete
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132. Listed below are four respiratory capacities (i - iv) and four jumbled respiratory volumes of a normal human adult:
Respiratory Respiratory capacities volumes (i) Residual volume 2500mL (ii) Vital capacity 3500mL (iii) Inspiratory reserve 1200mL volume (iv) Inspiratory capacity 4500mL Which one of the following is the correct matching of two capacities and volumes?

A (ii) 2500mL, (iii) 4500mL
B (iii) 1200mL, (iv) 2500mL
C (iv) 3500 mL, (i) 1200mL
D (i) 4500 mL, (ii) 3500mL
Answer :   (iv) 3500 mL, (i) 1200mL
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133. Haemoglobin is

A Vitamin
B Skin pigment
C Blood carrier
D Respiratory pigment
Answer :   Respiratory pigment
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134. Carbonic anhydrase is mostly active in

A RBC
B WBC
C Blood Plasma
D Nephrostome
Answer :   RBC
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135. Oxygen haemoglobin dissociation curve will shift to right on decrease of

A Acidity
B Carbon dioxide concentration
C A and B both
D PH
Answer :   PH
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136. Why is CO poisonous for man

A CO affects the nerves of the lungs
B CO affects the diaphragm and intercostal muscles
C CO reacts with oxygen reducing percentage of O2 in air
D Haemoglobin combines with CO instead O2 and th product cannot dissociate
Answer :   Haemoglobin combines with CO instead O2 and th product cannot dissociate
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137. In human sound is produced by

A Syrinx
B Larynx
C Bronchus
D Traches
Answer :   Larynx
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138. In lungs air is separated from venous blood by

A Squamous epithelium + tunica exterma of blood vessel
B Squamous epithelium + endothelium of blood vessel
C Transitional epithelium + tunica media of blood vessel
D None of the above
Answer :   Squamous epithelium + endothelium of blood vessel
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139. Inhibition of respiratory centre is termed

A Bradypnoea
B Apnoea
C Anoxia
D Tachypnoea
Answer :   Apnoea
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140. CO2 is transported mainly by

A Plasma
B Carbonic acid
C Bicarbonate
D None of the above
Answer :   Bicarbonate
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