Innate immunity intro Flashcards
Y2C1 1 question will be asked
Adaptive immunity mediated by ?
lymphocytes
____cells includes,macrophages,mast and dendric cells which initiate immune responses
Tissue-resisdent sentinel
Inflammation is also a response for_____cells and accumulation of abnormal substances in tissues even absence of infection
dead or damaged
Antiviral defens helps to eliminate viral infection reservoirs without triggering an_________
Inflammation
recognition of normal self and nonself in innate immunity is made by expression of molecules that prevent_____reactions
Innate immune response
recognition of normal self or nonself in adaptive immunity based on selection aganist______lymphocytes
self-reactive
extracellular receptors in innate immunity are
____receptors(TLRs)
____receptors(CLRs)
Toll-like
C-type lectin receptors
some TLRs found in______, where they detect nucleic acids of ingested______
endosomal
microbes
cytosolic receptors of Innate Immunity are
_____receptors(NLRs)
_____receptors(RLRs)
_____Sensors(CDSs)
NOD-like
RIG-like
cytosolic DNA
_____receptors play a role in directing leukocyte migration in response to bacterial signals
formylpeptide
Epithelia serve as_____barriers to prevent_____entry
physical
microbial
Phagocytes engulf and destroy______&______
pathogens & debris
Dendric cells act as______presenting cells that initiate_______immune responses
antigen presenting
adaptive
Natural killer cells recognise and kill______infected cells and certain____cells
virus-infected
tumor cells
Cytokines small signaling proteins released by cells that mediate and regulate______,_____and_______
immunity,inflammatiion and hematopoiesis
Plasma proteins ıncludes complement system proteins that assist in destroying______
pathogens
epithelial cells produce____antibiotics,such as defensins and cathelicidins
peptide antibiotics
peptide antibiotics produced by epithelial cells are ?
defensins and cathelicidins
Epithelia contain________T lymphocytes that recognize microbial___and other microbial structures
intraepithelial
lipids
neutrophils also known as______nuclear leukocytes(PMNs)
polymorphonuclear
cytokines known as_____factors(CSFs) induces neutrophil production duing infections
colony-stimulating
monocytes migrate to tissues and differentiate into?
macrophages
macrophages/monocytes can produce_____to regulate inflammation
cytokines
dendric cells respond to mictobes by producing variety of ?
cytokines
dendritic cells act as bridge between_____&_______
Innate & active immunity
activation of mast cells occurs by microbial products binding to______receptors as part of_____immunity
Toll-like
Innate
mast cells secreate_____such as_____factor(TNF)
cytokines
tumor necrosis
Innate lymphoid cells are_____like cells that produce______and perform similar to__lymphocytes
lymphocyte-like
cytokines
T lymphocytes
Innate lymphoid cells do not express_____receptors(TCRs)
T cell antigen receptors
natural killer cells-I secrete____activating cytokine IFN-y
macrophage
Natural killer cells-I express unique surface____but do not express____or____receptors
proteins
immunoglobins
T cell receptors
healthly host cells express self class I MHC molecules, which are recognized by_______receptors
NK cell inhibitory cells
Infected cells get killed by NK cell due to low expression of______molecules which reduces activity of_______
Class I MHC molecules
inhibitory receptors