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Innate Immunity Summary - Coggle Diagram

- - - - AMPs: Antimicrobial peptides are a class of small peptides that widely exist in nature and they are an important part of the innate immune system of different organisms.
      - pH: remains sterile until it is released and has a slightly acidic pH which can prevent rapid pathogen growth
    - - Lysozyme: naturally occurring enzyme found in bodily secretions such as tears, saliva, and milk. It functions as an antimicrobial agent by cleaving the peptidoglycan component of bacterial cell walls, which leads to cell death
    - - pH: the pH of gastric juice or hydrochloric acid (stomach) is around pH = 1; highly acidic conditions reduce the ability of pathogens to reproduce and survive
  - - - Cell junctions: a class of cellular structures that consists of multi protein complexes that provide contact or adhesion between neighbouring cells or between a cell
      - Secretions: e.g. mucus normally produced in the nose, mouth and trachea (windpipe). Secretions are usually clear or white, lysozymes and antibodies
      - Cilia: traps the mucus and if pathogens are present in the mucus, they will be trapped
    - - Presence of keratin: gives elasticity and strength to the skin, making it difficult for pathogens to enter
      - Stratum corneum: outermost layer of the epidermis and serves as the primary barrier between the body and the environment
      - Good blood supply:
        By increasing blood flow, exercise helps nourish skin cells and keep them vital
- - - - Macrophage
      - Dendritic cell