Review - Questions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Describe platelets | thrombocytes, smalled formed elements found in the blood, not true cells; fragments of cells, initiate blood clotting, hemostasis
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Describe red blood cells | transport O2/co2, most numerous circulating blood cells, during erythropoeisis they decrease in size, develop Hb/Hgb (give them their red colour), Hb carries O2 to body tissues and exchanges it for CO2, shaped like biconcave disks
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Describe spleen | acts as a filter, resembles a lymph node, destroys old RBCs, stores healthy blood cells
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Describe the thymus | responsible for cellular immunity, transforms lymphocytes into Tcells, located in Mediastinum
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Describe the tonsils | masses of lymphatic tissue, protect upper respiratory structure, acts as a filter
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Describe WBCs | protect the body from pathogens, remove debris, aid in the healing process, diapedesis, initiate inflammation and immune response, phagocytic, granulocyte & agranulocyte, migrate through capillaries & venues
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List autoimmunne diseases | AIDS, RA, MG, ALLERGIES, thrombocytopenia, vasculitis, SLE
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What is the function histamines? | initiate the inflammatory process by increasing blood flow
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What are the 2 ducts of the lymph system | Right lymphatic duct, thoracic duct (left side)
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What are the 4 types of T cells? | 1. cystotoxic 2. helper cell 3. suppressor cell 4. memory T-cell
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what are the functions of the lymph system? | maintaining fluid balance of body, transporting lipids away from the GI system, filtering and removing unwanted or infections products.
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what is an allergy | acquired abnormal immune response
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what is hematology | studies blood cells, blood-clotting mechanisms, bone marrow and lymph nodes
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What is heparin | acts to prevent blood from clotting at injury site
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Where do blood cells develop from? | stem cells
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