71. 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: C
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72. Which one of the following animals has
two separate circulatory pathways
A. Shark
B. Frog
C. Lizard
D. Whale
Answer: D
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73. Blood pressure in the mammalian aorta is
maximum during
A. Diastole of the right atrium
B. Systole of the left atrium
C. Diastole of the right ventricle
D. Systole of the left ventricle
Answer: D
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74. Erythropoiesis starts in
A. Red bone marrow
B. Kidney
C. Liver
D. Spleen
Answer: A
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75. Which one of the following is correct ?
A. Blood = Plasma + RBC + WBC + Platelets
B. Plasma = Blood - Lymphocytes
C. Serum = Blood + Fibrinogen
D. Lymph = Plasma + RBC + WBC
Answer: A
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76. A certain road accident patien with unknown blood group needs immediate blood
transfusion. His one docter friend at once offers his blood .What was the blood group of the doner ?
A. Blood group O
B. Blood group A
C. Blood group B
D. Blood group AB
Answer: A
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77. There is no capillary system in case of most of the invertebrates except
A. Crustaceans
B. Cephalopods
C. Insects
D. Gastropods
Answer: B
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78. Which of the followng cannot be taken as a feature of open type circulatory system ?
A. Low pressure system
B. Well-regulated blood supply to different
organs
C. Blood returns to the heart slowly
D. Non-perforation of capillaries
Answer: B
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79. The cardiac pacemaker in a patient fails to function normally. The doctors find that an artifical pacemaker is to be grafted in him. It is likely that it will be grafted at the site of
A. Purkinje system
B. SA node
C. AV node
D. AV bundle
Answer: B
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80. Which has no muscular walls
A. Artery
B. Vein
C. Arteriole
D. Capillary
Answer: D
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