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36 Cards in this Set
- Front
- Back
Functions of the lymphatic system |
facilitating immune responses, Draining excess interstitial fluid and plasma proteins, and transporting dietary lipids and vitamins from GI tract to the blood |
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Facilitating immune responses |
recognize microbes or abnormal cells and responding by killing them directly or secreting antibodies that cause their destruction |
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So lymphatic system consists of |
Redbone marrow (stem cells) lymphatic vessels lymphatic organs lymphatic tissues |
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Lymphatic organs |
Thymus, spleen, lymph nodes |
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Lymphatic tissues |
Lymphatic nodules, malt, tonsils |
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Redbone marrow |
The site of lymphocyte production |
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Lymphatic vessels and lymph |
Lymph capillaries, vessels, trunks, ducts. |
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Lymphatic organs |
Specialized reticular tissue containing large numbers of lymphocytes, example; thymus gland, spleen, lymph nodes |
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Diffuse lymphatic tissues |
No capsule, along the mucous membrane lining tracks, lymphatic nodules and norio's aggregates |
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Lymphatic organs |
Redbone marrow Thymus Spleen Lymph nodes |
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Diffuse tissue |
Tonsils and peyers patches |
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Lymphatic vessels |
Right lymphatic duct Thoracic duct |
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Lymph |
Similar to interstitial fluid |
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Emphatic capillaries |
Begin as close ended vessels with a slightly larger diameter than blood capillaries composed of overlapping endothelial cells which work as one way valves for flow to enter the lymphatic capillary but not out |
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Primary lymphatic organs/tissues |
Provide environment for stem cells to divide and mature into b&t lymphocytes |
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Secondary lymphatic organs/tissues |
Site where most immune responses occur |
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Example of primary lymphatic organs/tissues |
Redbone marrow Thymus |
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Redbone marrow |
Gives rise to mature b cells |
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Thymus |
The site where pretty sells from red marrow mature |
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Secondary lymphatic organ sash tissues examples |
Spleen, lymph nodes and lymphatic nodules |
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Lymph nodes |
Cleanse the length of foreign substances, microface destroys some and lymphocytes destroy others by immune response |
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Lymph nodes part 2 |
A site of t&b cell activation and profileration |
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Spleen |
Largest mass of lymphatic tissue in the body |
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Spleen part 2 |
Storage blood platelets involved in a production of blood cells during second trimester of pregnancy microphages remove worn-out defective cells b&t cells carry out immune functions |
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Malt |
Tonsils, appendix, peyers patches |
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Tonsils |
Form ring at top of throat - Palatine, pharyngeal and lingual tonsils |
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Peyers patches |
In the ileum of small intestine |
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Interiorfirons |
Virus infected cells produce IFN to save neighboring healthy cells |
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Adaptive immunity |
Ability of the body to defend itself against specific invading agents |
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Distinguished from innate immunity by |
Specificity recognize self and non-self Memory second encounter produces even more bigger is response |
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Immunocompetence |
Ability to carry out adaptive immune response |
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Cell mediated immunity |
Intercellular pathogens example fungi viruses parasites cancer and tissue transplants |
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Antibody mediated immunity |
Against extracellular agents in the body fluid example bacteria |
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Examples of APCs |
Microphages b cells and dendritic cells |
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T cell clonal section |
After successful stimulation the activity t-cell profilerates and gives rise to a clone some clones become effective and some become memory cells |
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Antibodies |
Immunoglobulin, for polypeptide chains to heavy too light to antigen find sites at the tips |