Anatomy and Physiology /HOSA: Med Term Lymphatic/Immune Part 2
HOSA: Med Term Lymphatic/Immune Part 2
This deck covers key terms and concepts related to the lymphatic and immune systems, including definitions and descriptions of various cells, tissues, and reactions.
define HELPER CELLS (T4)
aid B cells to recognize antigens & stimulate antibody production
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Key Terms
Term
Definition
define HELPER CELLS (T4)
aid B cells to recognize antigens & stimulate antibody production
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define NATURAL KILLER CELLS (NK cells)
target pathogenic cells (viruses & cancers) by recognizing sugars
describe TONSILS
3 masses of lymphoid tissue in protective ring to stop pathogens to respiratory from nose & mouth (adenoids, palatine, lingual)
describe THYMUS
mass of lymphoid above heart that stimulates lymphocytes into T cells; biggest @ puberty & shrinks w/age
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define VERMIFORM APPENDIX
mass of lymphoid tissue that hangs from lower part of cecum
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define SPLEEN
sac-like mass of lymphoid tissue in LUQ inferior diaphragm & posterior stomach
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| Term | Definition |
|---|---|
define HELPER CELLS (T4) | aid B cells to recognize antigens & stimulate antibody production |
define NATURAL KILLER CELLS (NK cells) | target pathogenic cells (viruses & cancers) by recognizing sugars |
describe TONSILS | 3 masses of lymphoid tissue in protective ring to stop pathogens to respiratory from nose & mouth (adenoids, palatine, lingual) |
describe THYMUS | mass of lymphoid above heart that stimulates lymphocytes into T cells; biggest @ puberty & shrinks w/age |
define VERMIFORM APPENDIX | mass of lymphoid tissue that hangs from lower part of cecum |
define SPLEEN | sac-like mass of lymphoid tissue in LUQ inferior diaphragm & posterior stomach |
purpose of spleen | filters microorganisms & foreign from blood; forms lymphocytes & monocytes; destroyes RBCs; store extra RBCs & maintain balance between plasma & RBCs |
define ANTIGEN-ANTIBODY REACTION | bind antigen to antibodies so immune can recognize & destroy |
aka: antigen-antibody reaction | immune reaction |
define TOLERANCE | acquired unresponsiveness to specific antigen or decline in responsiveness to drug |
describe IMMUNOGLOBULINS | bind w/specific antigens in antigen-antibody response; types = G, A, M, D, E |
describe IgG | most abundant & main defense; blood & lymph; fight bacteria, fungus, viruses, & foreign particles; 75% all Ig; only one that can cross placenta |
describe IgA | gen against ingested antigens; bodily secretions/fluids; prevent attachment of virus & bacteria to epithelial surface |
define IgM | in circulating bodily fluids & 1st to appear in response to exposure |
define IgD | only on surface of B cells & important in B cell activation |
define IgE | made in lungs, skin, mucous membranes & responsible for allergic reactions |
describe PHAGOCYTES | specialized leukocytes part of antigen-antibody that destroys cell debris, dust, pollen, & pathogens; types = monocytes, macrophage, dendritic cells, mast cells |
define MONOCYTES | leukocytes w/immunological defenses & become macrophages & dendritic cells after leaving bloodstream |
define MACROPHAGE | leukocyte surround & kill to remove dead cells & stimulate immune cells |
describe DENDRITIC CELLS | specialized leukocytes patrol body; grabs & swallows & alerts B & T cells |
describe COMPLEMENT SYSTEM | group of proteins circulate blood when inactive; together w/antibodies dissolve & remove pathogenic bacteria & foreign cells |
describe IMMUNITY | state of being resistant to disease; natural/passive (since birth/breast milk) & acquired (have had disease/vaccine) |
describe MYCOSIS | any abnormal condition/disease bc of fungus |
describe LYMPHADENITIS lymphadenitis | inflammation of lymph nodes gen indicating infection |
aka: lymphadenitis | swollen glands |
define LYMPHADENOPATHY | any disease affecting lymph nodes |
describe LYMPANGIOMA | benign tumor from weird collection of lymphatic vessels bc congenital malformation of lymphatic system |
define RUPTURED SPLEEN | covering of spleen torn |
describe LYMPHEDEMA (LE) | swelling form abnormal accumulation of lymph fluid in tissues bc of damage to system; associated w/infections |
define ALLERGIC REACTION | immune system reacts to harmless allergen |