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WorksheetsBlood Cell Formation and Development
Total questions: 10
Worksheet time: 50secs
The process of formation and development of blood cells is termed:
Hematopoiesis
Hematocrit
Hematology
Hematoma
During the second trimester of fetal development, the primary site of blood cell production is the:
Bone marrow
Spleen
Lymph nodes
Liver
Which one of the following organs is responsible for the maturation of T lymphocytes and regulation of their expression of CD4 and CD8?
Spleen
Thymus
Liver
Bone marrow
The best source of active bone marrow from a 20 year old would be:
Femur
Iliac crest
Distal radius
Tibia
Which organ is the site of sequestration of platelets?
Bone marrow
Liver
Thymus
Spleen
Which one of the following morphologic changes occurs during normal blood cell maturation?
Condensation of nuclear chromatin
Increase in cell diameter
Development of cytoplasm basophilia
Nuclear fragmentation
What is the primary function of erythrocytes?
Hormone regulation
Oxygen transport
Immune response
Blood clotting
What is the lifespan of a typical platelet?
100 days
40 days
7 days
10 days
Which one of the following cytokines is required very early
in the differentiation of a hematopoietic stem cell?
IL-2
IL-8
EPO
FLT3 ligand
When a patient has severe anemia and the bone marrow is
unable to effectively produce red blood cells to meet the
increased demand, one of the body’s responses is:
Increased proportion of yellow marrow in the long
bones
Decreased production of erythropoietin by the kidney
Extramedullary hematopoiesis in the liver and spleen
Increased apoptosis of erythrocyte progenitor cells
