61. Which vessel carries most oxygenated blood

A Pulmonary artery
B Pulmonary vein
C Coronary artery
D Cerebral artery
Answer :   Pulmonary vein
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62. The wall of Rabbit's heart is thick due to presence of

A Inner layer endocardium
B Middle layer myocardium
C Outer most layer paricardium
D Outer layer epicardium
Answer :   Middle layer myocardium
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63. The papillary muscles are helpful in

A Movement of eye balls
B Movement of eye libs
C Closing & opeing thevalves of heart
D Movement of pinnae
Answer :   Closing & opeing thevalves of heart
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64. Systemic heart refers to:

A the two ventricles together in humans
B the heart that contracts under stimulation from nervous system
C left auricle and left ventricle in higher vertebrates
D entire heart in lower vertebrates
Answer :   left auricle and left ventricle in higher vertebrates
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65. An artery can be distinguished from a vein in having

A Thicker wall
B Lesser lumen
C No valves
D All of the above
Answer :   All of the above
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66. Blood pressure is measured by

A Sphygmonanometer
B Phonocardiogram
C Electrocardiogram
D Stethoscope
Answer :   Sphygmonanometer
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67. All arteries carry oxygenated blood except

A Systemic
B Hepatic
C Pulmonary
D Cardiac
Answer :   Pulmonary
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68. Pulmonary veins are those which

A Carry impure blood from lungs to heart
B Carrying pure blood From lungs to heart
C Carry impure blood from heart to lung
D None of the above
Answer :   Carrying pure blood From lungs to heart
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69. A person with blood group $$A$$ requires blood. The blood group which can be given is

A $$A$$ and $$B$$
B $$A$$ and $$AB$$
C $$A$$ and $$O$$
D $$A, B, AB$$   and $$O$$
Answer :   $$A$$ and $$O$$
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70. Cells formed in bone marrow include

A RBC
B RBC and leucocytes
C Leucocytes
D Lymphocytes
Answer :   RBC and leucocytes
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