Immunity serves as our body's defense mechanism against infections and diseases. This intricate system generates an immune response to safeguard the body from external cells, substances, and tissues. This defense network encompasses various components within the body, such as the thymus, spleen, lymph nodes, specific accumulations of lymphoid tissue found in the bone marrow and gastrointestinal tract, as well as macrophages, lymphocytes like T cells and B cells, along with antibodies.
Inflammation, on the other hand, can arise due to chemical, physical, and biological agents. Factors like overexposure to sunlight, physical injuries, exposure to radiation from sources like X-rays, extreme temperatures, corrosive chemicals, or the presence of infectious agents can all trigger inflammation. It's important to note that infection and inflammation should not be confused as interchangeable terms.