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25 Cards in this Set
- Front
- Back
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immune system
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~specialized cells/structures that defend against invasion by harmful organisms/chemical toxins
~lymph nodes, thymus, spleen, tonsils |
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hematologic system
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~blood delivers O2/nutrients to all tissues/removes wastes
~blood, bone marrow |
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lymphatic vessels
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~capillary-like structures that are permeable to large molecules
~prev edema by moving fluids/proteins 4m interstitial spaces to venous circulation ~reabsorb fats 4m small intestine |
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lymph nodes
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~tissues that filter out bacteria and other foreign cells
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lymph
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~fluid found in interstitial spaces
~water and end prod of cell metabolism |
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tonsils
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~back of the mouth in oropharynx
~fight off pathogens entering mouth/nose ~made of lymphatic tissue and produce lymphocytes |
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spleen
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~destroys bacteria
~filters blood ~blood reservoir ~forms lymphocytes and monocytes ~traps formed particles |
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red bone marrow
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~source of lymphocytes/macrophages
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hematopoiesis
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~process which erythrocytes, leukocytes, thrombocytes are produced
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yellow bone marrow
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~red bone marrow that has changed to fat
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stem cells
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~may evolve in2 lymphocytes -> B cells or T cells
~may evolve in2 phagocytes |
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erythrocytes
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~RBCs
~formed in bone marrow ~contain hemoglobin ~O2 binds w/HGB to form oxyhemoglobin, which is carried by RBCs throughout the body |
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thrombocytes
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~platelets
~formed in bone marrow ~function in coag of blood |
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leukocytes
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~WBCs
~formed in bone marrow/lymphatic tissue ~provide immunity and protection 4m infec by phagocytosis |
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phagocytosis
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~engulfing, digesting, destroying microorganisms
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plasma
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~liquid portion of blood, H2O, protein, glucose, electrolytes
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P.L.A.T.E.
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~Plasma
~Leukocytes ~AB antigens ~Thrombocytes ~Erythrocytes |
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blood types
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~A antigen
~B antigen ~AB antigen ~O (no antigens) |
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O blood type
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~lacks both A & B antigens, it can be transfused in limited amts in an emergency to any pt
~universal donors |
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AB blood type
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~has neither anti-A, anti-B, or O
~universal recipient |
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cell-mediated immunity
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~T cells respond directly to antigens
~destruction of target cells (virus-infected/CA cells) thru secretion of lymphokines ~EX:rejection of transplanted organs, delayed immune responses that fight disease |
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antigens
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~foreign substances
~EX:bacteria, toxins ~induce antibody formation |
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lymphokines
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lymph proteins
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types of T cells
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~killer
~helper ~suppressor |
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killer cells
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~bind to surface of the invading cell, disrupt membrane, destroy it by altering its internal environment
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