BIO 280 Level 1, 2 & 3 defenses Study guide 2024

Describe the three levels of the bodies defenses specific/solicited? Where? - Level one: on surface -non specific, non-solicited Level two: beneath the surface -non-specific, semi-solicited Level three: systemic responses -specific, solicited What defenses contribute to the level one defenses? type of cells? layering/levels in skin? moisture? also includes? - skin, mucous membranes, chemicals close fitting cells, multi-layered epidermis and dermis, dry also includes keratin (cornification) What specific chemicals/proteins are used in level one defenses? level one defenses also includes what two things that normally live on the surface of the skin? - Chemicals: -salt -sebum Proteins: -lysozyme -defensins also includes: normal flora, hair The process of new cells being created through mitosis underneath the epidermis pushing up older epidermal cells to the surface of the skin to be removed - Sloughing Keratin toughening is called? - cornification What consists of the three main parts of level one respiratory defenses? - -hairs/turbines -cough/sneeze reflexes -ciliary escalator flat moist surfaces that air hits and has to go around the surface in the respiratory tract are called? - turbines