Body Fluids and Circulation

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Question

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Question 1 : In developing embryo RBCs are formed in
1. Lymph node
2. Bone marrow
3. Spleen
4. Liver
Answer
9416

Question 2 : In humans, blood passes from the post caval to the diastolic right atrium of heart due to
1. Suction pull
2. Stimulation of the sino auricular node
3. Pushing open of the venous valves
4. Pressure difference between the post caval and atrium
Answer
9417

Question 3 : When body tissues are injured resulting in the loss of blood, the process of blood clot begins and the blood platelets release
1. Thromboplastin
2. Prothrombin
3. Thrombin
4. Fibrinogen
Answer
9418

Question 4 : An adult human has systolic and diastolic pressures as
1. 120 mm Hg and 80 mm Hg
2. 80 mm Hg and 120 mm Hg
3. 50 mm Hg and 80 mm Hg
4. 80 mm Hg and 80 mm Hg
Answer
9419

Question 5 : Duration of cardiac cycle is
1. 0.9 sec
2. 0.8 sec
3. 0.7 sec
4. 0.11 sec
Answer
9420