1) Which of the following can be used to describe megakaryocytes? a) Contributes to mast cells b) Formed by fusion of haploid cells c) Possess cell projections d) Precursor to macrophages 2) Which structure is partly covered by nonkeratinized stratified squamous epithelium a) Hassal's corpuscle b) Lymph node c) Palatine tonsil d) Peyer patch 3) A blood smear from a 70-year-old male reveals increased population of cells that have large, round nuclei, with abundant azurophilic granules. Which cell is described? a) Basophilic erythroblast b) Eosinophils c) Promyelocytes d) T cells 4) Which cytoplasmic components are the dark precipitate that form in reticulocytes in a cresyl blue stain? a) Golgi complex b) Hemoglobin c) Nucleoli d) Polyribosomes 5) Which of the following structures in the lymphoid organ are surrounded by macrophages? a) Germinal centers b) Paracortex c) Sheathed arterioles d) Splenic venous cords 6) What is the earliest stage at which a specific granulocyte starts to indent their nucleus? a) Metamyelocyte b) Myeloblast c) Myelocyte d) Promyelocyte 7) Which of the following is a function of the lymphoid nodes? a) Destruction of red cells b) Extramedullary hemopoiesis c) Filtration of blood d) Filtration of lymph 8) A baby is diagnosed with a erythropoietin receptor gene mutation. During 7th thru 9th month fetal development, the primary effect on red cell production occurs in which location? a) Bone marrow b) Liver c) Thymus d) Yolk sac 9) A 12-year-old girl has sickle cell disease. Which of the following sites will abnormal cells be removed from the circulation? a) Medullary sinus of lymph nodes b) Periarteriolar lymphoid sheath of white pulp c) Splenic cords d) Thymic cortex

Histology: BM, lymph node, tonsil, spleen

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