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29 Cards in this Set
- Front
- Back
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Q. Blood is a
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specialized connective tissue composed of formed elements
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Q. Blood Consist of
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red blood cells, white blood cells, and platelets, suspended in a fluid matrix-the blood plasma.
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Q. Blood is derived from
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mesenchyme
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Q. Coagulation:
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necessary to stop flow if the vascular tree is damaged
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Q. Coagulation is mediated by
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platelets and blood-borne factors that transform blood from a sol to a gel
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Q. Blood Functions
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Transport, cellular waste, hormone signaling, oxygen to cells, body temp regulation, acid base osmotic balance, pathway for white blood cells to migrate
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Q. Plasma:
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A yellowish fluid with the solid elements, organic elements, and electrolytes suspended or dissolved in it
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Q. Blood Formed Elements
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Erythrocytes- red blood cells, Leucocytes- white blood cells, Platelets
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Q. Erythrocyte life span
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120 days
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Q. Leukocyte Two Groups
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granulocytes; with conspicuous specific granules in the cytoplasm, agranulocytes; which lack conspicuous granules in the cytoplasm
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Q. Granulocytes
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Basophils, Eosinophils, Neutriphils
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Q. Basophils
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Blue loving. Initiators of inflammatory process
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Q. Eosinophils:
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pink loving(love acid). Find them in allergic reaction
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Q. Neutriphils:
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Principal Component of pus
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Q. Agranulocytes:
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monocytes and Lyphocytes
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Q. Monocytes:
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They stay in circulation only a few days and migrate through the endothelium of venules. Become macrophages.
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Q. Lymphocytes:
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The nucleus is dense and dark-staining. Function in the immune system
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Q. Three functional lymphocyte categories:
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B lymphocytes (b cells), T lymphocytes (T-cells), natural kill cells
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Q. B-Cells:
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Make Antibodies, memory cells
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Q. Natural Killer Cells:
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virus infected cells, and cancer cells
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Q. T-Cells:
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Autoimmune response. Memory Cells which help attack previous viruses
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Q. Platelet characteristics:
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No nucleus, produced by megakaryocytes, initiate clotting, terminate hemorrhage
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Q. Hemioposis:
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blood making
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Q. Sites of Hemioposis:
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skull(axial Skeleton), ribs, sternum, vertebral column, pelvis, proximal ends of femora
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Q. Before birth hemioposis occurs in
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Liver, Spleen, yolk sac
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Q. Stroma contains:
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endothelial cells, macrophages, fibroblasts, and myeloid reticular cells.
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Q. Bone Marrow Characteristics:
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reticular connective tissue. Fat storing cells are plentiful (yellow marrow).
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Q. Bone Marrow Function:
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Bone marrow functions in blood formation from the 5th month until death. Long bone diaphyses house only yellow marrow after age 20. Vascular supply is from nutrient arteries.
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Q. Prenatal hemopoiesis four phases:
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mesoblastic (yolk sac, 2 wks to 6th wk), hepatic (6 wks to birth), splenic (2nd trimester to birth), and myeloid
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