The venous return to the heart is facilitated by:
1. valves
2. inspiration
3. skeletal muscle
4. all of these
A condition where the arteries become narrowed and hardened due to a buildup of plaque around the artery wall is called as:
1. arteriosclerosis
2. phlebitis
3. atherosclerosis
4. plaque
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During the cardiac cycle the tricuspid and bicuspid valves get closed when:
1. when pressure inside the ventricles is at its lowest
2. when pressure inside the atria is greater than that inside the ventricles
3. when ventricular pressure exceeds that of the atria
4. when pressure is greater in the aorta than in the left ventricle
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A large bone marrow cell with a lobated nucleus responsible for the production of blood thrombocytes is:
1. progranulocyte
2. basophilic band cell
3. monoblast
4. megakaryoblast
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The least significant factor for erythropoiesis amongst the following is:
1. vitamin B12
2. vitamin B6
3. folic acid
4. gastric intrinsic factor
A disease state in which the hematocrit (the volume percentage of red blood cells in the blood) is elevated is called as:
1. polycythemia
2. anemia
3. leukemia
4. porphyria
The deficiency of cynocobalamin or vitamin B12 causes:
1. aplastic anemia | 2. pernicious anemia |
3. hemolytic anemia | 4. hemorrhagic anemia |
Which cells are the rarest leukocytes?
1. monocytes
2. basophils
3. eosinophils
4. lymphocytes
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All the following leukocytes have phagocytic properties except:
1. monocyte
2. lymphocyte
3. neutrophil
4. eosinophil
Which of the following will be regarded as a normal thrombocyte count?
1. 1 million per cubic cc
2. 200,000 per cubic mm
3. 1 million per cubic mm
4. 10,000 per cubic mm