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lysosomes - CORRECT ANSWER-strong bactericidal and digestive
enzymes in PMN
-perio pathogens are effectively destroyed by PMNs
monocytes/macrophages - CORRECT ANSWER-monocytes:in the
bloodstream
macrophages: in the tissues
-slower to arrive at infection site than PMNs
-surround/destroy bacteria
-long-lived cells in chronic inflammation
lymphocytes - CORRECT ANSWER-small leukocytes- help defend
body
2 types: B cells, t cells
B lymphocytes - CORRECT ANSWER-B Cells
makes antibodies and pour into bloodstream
2 types: plasma/ memory b cells
,antibodies - CORRECT ANSWER-y shaped proteins
y binds w outside of b celll
-other end of y binds to a MO and kills it
antibodies - CORRECT ANSWER-are known collectively as
immunoglobulins
T lymphocytes - CORRECT ANSWER-T cells
intensify the response of other immune cells to bacterial
invasion
-produce CYTOKINES- further stimulate immune response
cytokine - CORRECT ANSWER-protein secreted by cells and affects
behaviour of nearby cells
regulate behaviour of immune cells
complement system - CORRECT ANSWER-series of protons
circulating in blood:
-facilitate phagocytosis of bacteria
-kill bacteria directly - form pores in bacterial cell membrane
function of complement system - CORRECT ANSWER-• Destruction of
pathogens
• Opsonization of pathogens
, • Recruitment of phagocytes
• Immune clearance
trans-endothelial migration - CORRECT ANSWER-leukocytes push
their way between endothelial cells and enter connective tissue
migration - CORRECT ANSWER-leukocytes travel through the
bloodstream to fight an infection
body response to inflammation - CORRECT ANSWER-focuses host
defence components at the site of an infection to eliminate MOs
and heal damaged tissue
inflammatory biochemical mediators - CORRECT ANSWER-
Biologically active compounds secreted by cells-activate the
body's inflammatory response
chemokines - CORRECT ANSWER-subgroup of cytokines- cause
additional immune cells to be attracted to site of
infection/injury
acute inflammation - CORRECT ANSWER-short term- normal
process- protects and heals body
-increased movement of plasma and leukocytes from blood into
injured tissues