Briefly describe the process of inflammation in an area that has been traumatized.
Inflammation is an essential defense mechanism of our body that is usually caused by pathogens, abrasions, chemical irritations, etc. The process of inflammation has three main stages. First is the vasodilation of arterioles that enables more blood to flow and increased permeability of capillaries where defensive proteins enter the injured area. The second stage is the emigration of phagocytes where neutrophils try to reach the damaged area and attempt to destroy the macrophages through phagocytosis.The last stage is when tissue repair is initiated.
Choose one type of Immunity (Innate and Humoral) and explain how its mechanism protects our body.
Innate immune responses immediately act when infectious agents are detected. The skin and mucous membranes serve as the body’s first line of defense. They provide physical and chemical barriers that obstruct harmful pathogens and foreign substances. When pathogens are able to penetrate the first line of defense, the second line of defense such as internal antimicrobial substances, phagocytes, natural killer cells and others will then act on the pathogens.