Activity 1
- Briefly describe the process of inflammation in an area that has been traumatized.
- The first stage of inflammation is typified by a shift in blood flow to the injured area shortly after the injury. In the traumatized area, blood vessels gradually dilate and enhance blood flow into the tissue, resulting in redness (vasodilation). The next step is an increase in blood vessel permeability, which permits white blood cells, fluid, and proteins to move from the circulation to the area where tissue damage has occurred. Swelling is caused by an influx of fluids, cells, and other materials to the site of injury. White blood cells, especially phagocytes, work to lessen swelling, heat, and redness in areas of wounded tissue (emigration of phagocytes). After completing the process of clearing away dead cells, tissue repair will now proceed. - Choose one type of Immunity (Innate and Humoral) and explain how its mechanism protects our body.
- Your innate immunity is your defense mechanism from birth. It is occasionally referred to as the "nonspecific" immune system because of the uniform manner it reacts to all pathogens and foreign substances; you are shielded from every antigen by it. The protective walls of innate immunity prevent pathogens from penetrating your body. The immune response's first line of defense is made up of these barriers. The cough reflex, mucus, skin, stomach acid, and the enzymes in tears and skin oils are a few examples of innate immunity.