Answer :
The major component of our nonspecific defense system among the given options is B. Inflammation.
Inflammation is a key component of our nonspecific defense system, which provides an immediate response to injury, infection, or tissue damage. It is characterized by redness, heat, swelling, and pain in the affected area. Inflammation plays a vital role in recruiting immune cells, eliminating pathogens, and initiating tissue repair.
Inflammation serves several important functions in the immune response. First, it helps to contain and localize the infection or injury by increasing blood flow to the affected area, allowing immune cells and substances to reach the site quickly. The increased blood flow also helps deliver nutrients and oxygen necessary for tissue repair. Second, inflammation facilitates the recruitment of immune cells, such as neutrophils and macrophages, which engulf and destroy pathogens. Additionally, inflammation activates the production and release of various signaling molecules called cytokines, which coordinate and amplify the immune response.
While other options mentioned, such as active immunity, passive immunity, and cell-mediated immunity, are important components of the immune system, inflammation is specifically associated with the nonspecific defense system due to its immediate and general response to a wide range of pathogens or tissue damage.
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