| Term 
 | Definition 
 
        | Fluid in the tissue spaces that carries protein molecules and other substances back to the blood. Also interstitial fluid. |  | 
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        | Term 
 | Definition 
 
        | Lymphatic vessels; one-way movement, microscopic, one cell layer thick, poor fit between cells make porous walls, blind-end tubes in tissue spaces. |  | 
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        | Term 
 | Definition 
 
        | Lymphatic vessels in the wall of the small intestine for fat transportation. |  | 
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        | Term 
 | Definition 
 
        | Drains lymph from the right arm, right side of head, neck and upper torso. |  | 
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        | Term 
 | Definition 
 
        | Largest lymphatic vessel. Drains lymph from about 3/4 of the body. |  | 
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        | Term 
 | Definition 
 
        | Enlarged pouch along the course of the thoracic duct. |  | 
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        | Term 
 | Definition 
 
        | Swelling(edema) of the tissues caused by blockage of lymphatic vessels. |  | 
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        | Term 
 | Definition 
 
        | Inflammation of lymphatic vessels, may progress to septicemia (blood infection). |  | 
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        | Term 
 | Definition 
 
        | Severe lymphedema of limbs resulting from parasite infestation of lymphatic vessels. |  | 
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        | Term 
 | Definition 
 
        | Located in clusters along vessel pathway. Lymph enters from several afferent vessels, exits from one efferent vessel. Filters lymph. |  | 
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        | Term 
 | Definition 
 
        | Swelling and tenderness of lymph nodes. |  | 
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        | Term 
 | Definition 
 
        | Cancer cells can easily move through lymphatic vessels to other parts of the body. |  | 
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        | Term 
 | Definition 
 
        | Malignant tumor of lymph nodes. Hodgkin disease and non-Hodgkin lymphoma. |  | 
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        | Term 
 | Definition 
 
        | Lymphoid tissue organ in mediastinum. Mostly inactive in adults. Produces T cells. |  | 
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        | Term 
 | Definition 
 
        | Largest lymphoid organ. Located; upper left quadrant. Phagocytosis of bacteria and old RBCs, blood reservoir. |  | 
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        | Term 
 | Definition 
 
        | First line defense. Mechanical barrier to harmful agents.  Ex; skin, tears, mucus, ear wax, vomitting, diarrhea. |  | 
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        | Term 
 | Definition 
 
        | Second line defense, complement immune system, cell mediated immunity. Body can recognize, respond to, and remember harmful substances/bacteria. |  | 
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        | Term 
 | Definition 
 
        | Inborn immunity. Immunity to certain diseases from time of birth. |  | 
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        | Term 
 | Definition 
 
        | Immunity obtained after birth by injections or exposure to a harmful agent. |  | 
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        | Term 
 | Definition 
 
        | Exposure to agent is not deliberate. Active; active disease
 Passive; immunity passes from mother to fetus through placenta or from mother to child through milk.
 |  | 
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        | Term 
 | Definition 
 
        | Exposure to agent is deliberate. Active; vaccination, dead or weak virus
 Passive; protective material developed in another's immune system then transmitted to nonimmune person.
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        | Term 
 | Definition 
 
        | Protein compounds with specific binding sites that bind to specific antigens. Forms antigen-antibody complex. Humoral or antibody-mediated immunity. |  | 
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        | Term 
 | Definition 
 
        | 1.Neutralize/inactivate toxins. 2.Clump or agglutinate cells.
 3.Promote phagocytosis.
 |  | 
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        | Term 
 | Definition 
 
        | Kills infected or tumor cells by releasing a substance that poisons them. |  | 
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        | Term 
 | Definition 
 
        | Releases chemicals that attract and activate macrophages to "eat" cells; produce chemicals that help activate B cells. |  | 
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        | Term 
 | Definition 
 
        | Releases chemicals to suppress immune responses. |  | 
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        | Term 
 | Definition 
 
        | Hypersensitivity to harmless environmental antigens(allergens). Immediate response is usually humoral.
 Delayed response is usually cell-mediated.
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        | Term 
 | Definition 
 
        | Inappropiate, excessive response to self-antigens. Causes autoimmune disease. |  | 
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