131. Which organ receives only oxygenated blood

A Gill
B Spleen
C Lung
D Liver
Answer :   Spleen
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132. Heart of fishes

A Two chambered
B Venous heart
C A and B both
D None of the above
Answer :   A and B both
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133. The 'Lubb' and "Dupp" heart sound are due to

A Opening of heart valves
B Action of papillary muscles
C Closing of heart valves
D Activity of pace maker
Answer :   Closing of heart valves
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134. Pericardial fluid is secreted secreted by

A Myocardium
B Perietal peritoneum
C Visceral peritoneum
D Pericardium
Answer :   Pericardium
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135. To reach the left side of heart the blood must pass through

A Sinus venosus
B Kidneys
C Liver
D Lungs
Answer :   Lungs
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136. Single heart circuit occurs in

A Fishes
B Frog
C Reptiles
D Man
Answer :   Fishes
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137. Coagulation of lymph is

A Faster than blood
B Not possible
C Slower than blood
D A passive process
Answer :   Slower than blood
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138. Wall of blood capillary is

A Single layered
B Multilayered
C Multilayered but differentiated into 3 coats
D Noncellular
Answer :   Single layered
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139. Which one of the following is correct ?

A Serum = Blood + Fibrinogen
B Lymph = Plasma + RBC + WBC
C Blood = Plasma + RBC + WBC
D Plasma = Blood - Lymphocytes
Answer :   Blood = Plasma + RBC + WBC
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140. The largest and the thickest heart chamber is

A Left ventricle
B Left atrium
C Right atrium
D Right ventricle
Answer :   Left ventricle
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