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In normal adult bone marrow the M:E ratio isa. 1:2b. 2:1c. 1:3d. 3:1
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D. 3:1
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The following was obtained on a bone marrow differentialMyeloblasts 1Promyelos 5Myelocytes 10Neutro bands 9seg neutro 4Eos 1Basos 0Lymphs 7Monos 2Plasmacytes 1Normoblasts 60what is the myeloid:erythroid ratioa. 0.5:1b. 0.7:1c. 2.0:1d. 3.0:1
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A. 0.5:1
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What is the first type of cell produced by the developing embryo:a. erythrocyteb. granulocytec. lymphocyted. thrombocyte
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A. erythrocyte
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During normal erythropoiesis the stage of development exhibiting a condesed nucleus and buff pink cytoplasm is:a. orthochromatophilic normoblastb. polychormatophilic normoblastc. pronormoblastd. basophilic normoblast
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A. orthochromatophilic normoblast
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Place the following RBC in order of inc maturationa. erythrocyteb.reticulocytec. pronormoblastd. orthochromatophilic normoblaste. polychromatophilic normoblastf. basophilic normoblast
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C. pronormoblastf. basophilic normoblaste. polychromatophilic normoblastd. orthochromatophilic normoblastb. reticulocytea. erythrocyte
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The cytokine produced in response to low oxygen tension in the blood isa. IL-1b. EPOc. CSFd. MESF
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B. EPO
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The most mature stage of erythropoiesis in which hgb production occurs isa. early reticulocyeb. a mature erythrocytec. basophilic normoblastd. a polychromatophilic normoblast
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A. early reticulocyte
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The number of iron molecules contained in one molecule of hemoglobin isa. 1b. 4c. 16d. 32
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B. 4
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List the following compounds in the order in which are formed in the synthesis of hemoglobin1. coproporphyrinogen2. porphobilinogen3. uroporphyrinogen4. protoporphyrina. 4,3,1,2b. 2,3,1,4c. 4,2,3,1d. 2,1,3,4
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B. 2,3,1,4
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Normal adult hemoglobin includesa. Hgb A, A1 and A2b. Hgb A, A2 and Fc. Hgb A, F and Cd. Hgb A, B and F
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B. Hgb A, A2, and F
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Hgb A contains globin chains of the following classesa. 2 alpha and 2 delta chainsb. 2 alpha and 2 alpha-2 chainsc. 2 alpha and 2 beta chainsd. 2 alpha and 2 gamma chains
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C. 2 alpha and 2 beta chains
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During gestation, when is the yolk sak involved in rbc production?
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First 8-12wks
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During gestation when is the spleen and liver the main source of rbc production?
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2-9th month
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During gestation when is the liver and bone marrow the main source o f rbc production?
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Continues for a few weeks after birth
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The process by which oxygen is accepted and released by the hgb molecule isa. respirationb.oxidationc. reductiond. hydrolysis
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A. respiration
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