1. Briefly describe the process of inflammation in an area that has been traumatized.
Trauma causes direct damage to the cells near (immediate area) the injury, resulting in hemorrhage. The inflammatory process is initiated by the bleeding or when vasodilation occurs at the site resulting in increased blood flow, causing heat and redness. With that, blood vessel permeability will also increase, permitting proteins, fluid, and white blood cells (WBC) to the site of tissue injury. Clotting begins. Chemokines from various cells attract more phagocytic cells like neutrophils and macrophages to phagocyte pathogens and cell debris at the injury site. Repair and regeneration would follow, wherein new collagen is being formed. The tissue will then continue to remodel, strengthen and improve its cellular organization as the healing progresses.
2. Choose one type of Immunity (Innate and Humoral) and explain how its mechanism protects our body.
Innate (nonspecific) immunity is the inborn defense system or immune mechanism that is not dependent on previous exposures to antigens. Hence, during the first days of exposure to a new pathogen, the body depends on its innate immune system for protection. Its responses are the first line of defense in fighting against pathogens because this is the first to detect them. It also prevents the spread and movement of pathogens immediately. The cells of innate immunity include neutrophils, macrophages, natural killer cells, and K cells.
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Innate Immunity - an overview | ScienceDirect Topics. (n.d.). Www.sciencedirect.com. https://www.sciencedirect.com/topics/medicine-and-dentistry/innate-immunity
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