RAD TCDHA FINAL EXAM NEWEST 2024 ACTUAL EXAM 100
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A
what attracts leukocytes to an infection site - answer-PMNs are attracted to
bacteria by chemotaxis
lysosomes - answer-strong bactericidal and digestive enzymes in PMN
-perio pathogens are effectively destroyed by PMNs
monocytes/macrophages - 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 - answer-small leukocytes- help defend body
2 types: B cells, t cells
B lymphocytes - answer-B Cells makes
antibodies and pour into bloodstream
2 types: plasma/ memory b cells
antibodies - answer-y shaped proteins y
binds w outside of b celll
,-other end of y binds to a MO and kills it
antibodies - answer-are known collectively as immunoglobulins
T lymphocytes - answer-T cells
intensify the response of other immune cells to bacterial invasion
-produce CYTOKINES- further stimulate immune response
cytokine - answer-protein secreted by cells and affects behaviour of nearby cells
regulate behaviour of immune cells
complement system - answer-series of protons circulating in blood:
-facilitate phagocytosis of bacteria
-kill bacteria directly - form pores in bacterial cell membrane
function of complement system - answer-• Destruction of pathogens
• Opsonization of pathogens
• Recruitment of phagocytes
• Immune clearance
trans-endothelial migration - answer-leukocytes push their way between
endothelial cells and enter connective tissue
, migration - answer-leukocytes travel through the bloodstream to fight an infection
body response to inflammation - answer-focuses host defence components at the
site of an infection to eliminate MOs and heal damaged tissue
inflammatory biochemical mediators - answer-Biologically active compounds
secreted by cells-activate the body's inflammatory response
chemokines - answer-subgroup of cytokines- cause additional immune cells to be
attracted to site of infection/injury
acute inflammation - answer-short term- normal process- protects and heals body
-increased movement of plasma and leukocytes from blood into injured tissues
5 signs of acute inflammation - answer-heat, redness, swelling, pain, loss of
function
chronic inflammaation - answer-long lived- out of control- continues for more
than a few weeks
-can destroy healthy tissue and cause more damage than the original problem
why does chronic inflammation occur - answer-body is unable to rid itself of
invading organisms
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A
what attracts leukocytes to an infection site - answer-PMNs are attracted to
bacteria by chemotaxis
lysosomes - answer-strong bactericidal and digestive enzymes in PMN
-perio pathogens are effectively destroyed by PMNs
monocytes/macrophages - 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 - answer-small leukocytes- help defend body
2 types: B cells, t cells
B lymphocytes - answer-B Cells makes
antibodies and pour into bloodstream
2 types: plasma/ memory b cells
antibodies - answer-y shaped proteins y
binds w outside of b celll
,-other end of y binds to a MO and kills it
antibodies - answer-are known collectively as immunoglobulins
T lymphocytes - answer-T cells
intensify the response of other immune cells to bacterial invasion
-produce CYTOKINES- further stimulate immune response
cytokine - answer-protein secreted by cells and affects behaviour of nearby cells
regulate behaviour of immune cells
complement system - answer-series of protons circulating in blood:
-facilitate phagocytosis of bacteria
-kill bacteria directly - form pores in bacterial cell membrane
function of complement system - answer-• Destruction of pathogens
• Opsonization of pathogens
• Recruitment of phagocytes
• Immune clearance
trans-endothelial migration - answer-leukocytes push their way between
endothelial cells and enter connective tissue
, migration - answer-leukocytes travel through the bloodstream to fight an infection
body response to inflammation - answer-focuses host defence components at the
site of an infection to eliminate MOs and heal damaged tissue
inflammatory biochemical mediators - answer-Biologically active compounds
secreted by cells-activate the body's inflammatory response
chemokines - answer-subgroup of cytokines- cause additional immune cells to be
attracted to site of infection/injury
acute inflammation - answer-short term- normal process- protects and heals body
-increased movement of plasma and leukocytes from blood into injured tissues
5 signs of acute inflammation - answer-heat, redness, swelling, pain, loss of
function
chronic inflammaation - answer-long lived- out of control- continues for more
than a few weeks
-can destroy healthy tissue and cause more damage than the original problem
why does chronic inflammation occur - answer-body is unable to rid itself of
invading organisms
