Immunity Flashcards
Basically, what defines the innate immune system?
It is inborn and operates throughout life
What defines the Adaptive immune system?
It changes in response to the pathogens it encounters and is characterised by the development of immunological memory
What are cytokines?
Small soluble proteins involved in cell-cell signalling
What does autocrine mean?
Acts on cell secreting in
What does paracrine mean?
Acts on adjacent cells
What does endocrine mean?
Acts on cells and organs at remote sites
What are chemokines>
Subgroup of cytokines that recruit phagocytes and cause diapedeses
What do monocytes differentiate into in tissues?
Macrophages
What is the most abundant cell of the innate immune system?
Neutrophils
What cells release Histamine?
Mast cells and Basophils
What cell releases Histaminase?
Eosinophils
What PRR mediate phagocytosis?
Fc, beta-glucan and complement receptors
What PRR’s mediate an inflammaory response?
TLR’s, CLR’s and RLR’s
What are the symptoms of inflammation?
swelling, redness, heat, pain and loss of function
What are the 3 complement pathways?
Classical, alternative and mannose binding lectin pathway