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TCDHA Perio 1 Final With Questions And 100% ALL CORRECT ANSWERS
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JACKLINETCDHA Perio 1 Final With Questions And 100% ALL CORRECT ANSWERS
Terms in this set (121)
immune system complex body defines system- protects body against bacteria, viruses, toxins and parasites
-present at birth
-not antigen specific
innate system -present at all times
-does not improve with
repeated exposure to infectious agent
-develops throughout life
-antigen specific
adaptive immune system
-lag time between infection and response
-memory develops- provides lifelong immunity to reinfection
defend the life of the individual - by identifying foreign substances in body and developing
immune response
defence against them
host response The way that an individual's body responds to an infection
TCDHA Perio 1 Final
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, -act like independent single-cell organisms
leukocytes -can move through tissues and capture micro-organisms on their own
-2 types important in perio disease: PMNs, Moncytes/macrophages
phagocytosis process by which leukocytes engulf and digest microorganisms
(PMNs)
-neutrophils
polymorphonuclear leukocytes - rapid responders- 1st line of defence
- capture/ destroy bacterial invaders
-short-lived
what attracts leukocytes to an infection site PMNs are attracted to bacteria by chemotaxis
strong bactericidal and digestive enzymes in PMN
lysosomes
-perio pathogens are effectively destroyed by PMNs
monocytes:in the bloodstream
macrophages: in the tissues
monocytes/macrophages -slower to arrive at infection site than PMNs
-surround/destroy bacteria
-long-lived cells in chronic inflammation
small leukocytes- help defend body
lymphocytes
2 types: B cells, t cells
B Cells
makes antibodies and pour into bloodstream
B lymphocytes
2 types: plasma/ memory b cells
y shaped proteins
y binds w outside of b celll
antibodies
-other end of y binds to a MO and kills it
antibodies are known collectively as immunoglobulins
T cells
T lymphocytes intensify the response of other immune cells to bacterial invasion
TCDHA Perio 1 Final -produce CYTOKINES- further stimulate immune response
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