| lymph node |
An outpocketing of the lymphoid system where immune reactions occur. They range in size from peas to kidney beans. Collections of lymph nodes are found in the neck, around the collarbone, in the armpit (the "axilla"), and in the groin. During a physical exam, doctors usually feel these places, looking for swollen lymph nodes, which are a sign that active infection is present.
Ãâó: www.thebody.com/hivnews/aidscare/dec97/pullout.htm...
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| lymphocyte proliferation assay |
a test used to measure the memory of CD4 cells (so-called memory T cells) to antigens or microbes, such as HIV.
Ãâó: www.thebody.com/sfaf/summer01/glossary.html
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| lymphoid organs |
Include tonsils, adenoids, lymph nodes, spleen, thymus, and other tissues. These organs act as the body's filtering system, trapping invaders (ie, foreign particles, eg, bacteria and viruses) and presenting them to squadrons of immune cells that congregate there. Within these lymphoid tissues, immune activity is concentrated in regions called germinal centers, where the thread-like tentacles of follicular dendritic cells (FDCs) form networks that trap invaders.
Ãâó: www.thebody.com/hivatis/glossary/l.html
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| lymphocyte |
(noun) any of the colorless weakly motile cells originating from stem cells and differentiating in lymphoid tissue (as of the thymus or bone marrow) that are the typical cellular elements of lymph , include the cellular mediators of immunity, and constitute 20 to 30 percent of the white blood cells of normal human blood
Ãâó: www.orgsites.com/fl/adjuvantdisease/_pgg9.php3
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| lymph node |
A rounded mass of lymphatic tissue that is surrounded by a capsule of connective tissue. Also known as a lymph gland. Lymph nodes are spread out along lymphatic vessels and contain many lymphocytes, which filter the lymphatic fluid (lymph).
Ãâó: www.seniormag.com/conditions/cancer/cancerglossary...
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