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17 Cards in this Set
- Front
- Back
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lymphatic system |
drains protein containing fluid from tissue spaces that initially has drained from capillaries.
cleans and returns fluid to cardiovascular system |
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lymphatic vessels
lymph lymphatic organs lymph nodes |
drain into venous system
resembles plasma contain large number of lymphocytes bean shaped structures located along lymphatic vessels to filter lymph |
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Lymphatic flow
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draining plasma becomes interstitial tissue fluid
enters lymphatic vessels and becomes lymph to lymph nodes to larger lymphatic vessels |
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thoracic duct
right lymphatic duct |
collects from lower body and left half or upper body
collects from right upper body. |
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spleen
red pulp white pulp |
largest lymphatic organ, upper left abdomen, mature WBC, breaks down RBC
cords with large concentration of RBC nodules with large concentration on WBC |
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thymus gland
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involved in maturation of t cells (memory cells for immunity) from bone marrow
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tonsils
pharyngeal palatine lingual |
masses of lymphoid tissue in mucous membranes
located in nasal cavity (adnoids) located back of throat located at the base of the tonuge |
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active immunity
passive immunity |
after exposure to antigen
transferred antibodies to another person |
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non specific defenses
physical barriers phagocytic cells |
skin, mucus membranes
remove cellular debris -microphages (neutrophils, eosinophils) -marcophages (monocytes-fixed and free) |
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Macrophages
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diapedsis- squeeze through endothelium
chemotaxis- attracted to tissue via released chemicals from inflamed tissue |
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non specific defenses
Natural Killer Cells (NK cells) Interferon |
bind to abnormal cells and release perforin to cause cell lysis
proteins released by cells infected with viruses-prevents infection of healthy surrounding cells by preventing replication |
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non specific defenses
compliment system |
chain reaction with 11 proteins that help attack and destroy invading microbes
attract phagocytes promote inflammation directly destroys target cells enhances phagocytosis through opsonization |
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non specific defenses
fever inflammation |
high body temps to inhibit replication
release of histamine, seratonin and heparin from mast cells and basophils to increase circulation to tissue and allow immune response to arrive quickly |
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Specific Immunity
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controlled by lymphocytes- destruction and inactivation of pathogens, abnormal cells, and foreign molecules
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cellular immunity (specific)
memory t cells cytotoxic (killer t cells) t helper cell |
direct attack on foreign material by activating T lymphocytes
stay in lymphoid tissue to recognize same invader secrete macrophage, secrete sensitization factor, attach to antigen and destroy acceperate t killer cell maturation, activate NK cell, promote antibody production and b cell division |
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humoral immunity
b cell in lymphoid tissue memory cells plasma cells |
makes b cells
mature in Bone marrow and produce antibodies stay in tissue to recognize same invader produce antigen specific antibodies and are able to start antigen-antibody complex (inflammation, chemotaxic factor, opsonization, destroy cells) |
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Antibodies/Immunoglobins
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proteins produces by plasma cells in presence of specific antigens
IgG-80% resist bacteria, toxins, etc IgE-work in allergic reactions-release histamine IgD- helps b cells bind to antigen IgM- use agglutination of cross-typed blood IgA- attack pathogens before entering body (in tears/saliva etc) |
