What tissue associated with the skin and underlying tissues contains many cells that fight infection are these called what process do they use to rid body of organisms?

Connective tissue, specifically the reticular connective tissue located in the dermis of the skin and the hypodermis (subcutaneous tissue), contains many cells that fight infection. These cells are called leukocytes or white blood cells.

Leukocytes play a crucial role in the body's immune system and utilize various processes to rid the body of organisms that cause infection. These processes include:

1. Phagocytosis: Certain types of leukocytes, such as neutrophils and macrophages, engulf and ingest invading pathogens, cellular debris, and foreign substances. Once internalized, these pathogens are destroyed within the leukocytes.

2. Antigen Presentation: Leukocytes, such as dendritic cells, process and present antigens (fragments of pathogens) on their cell surfaces. This allows other components of the immune system, like T cells, to recognize and respond to the infection.

3. Antibody Production: B cells are a type of leukocyte that produce antibodies. Antibodies are proteins specifically designed to bind to and neutralize pathogens, marking them for destruction by other immune cells.

4. Inflammation: Leukocytes release chemical mediators that trigger inflammation, causing increased blood flow and permeability of blood vessels. This facilitates the recruitment of additional immune cells and nutrients to the site of infection, aiding in the defense against pathogens.

5. Cell-Mediated Immunity: T cells are involved in cell-mediated immunity, directly targeting and destroying infected cells or cancerous cells.

These processes work collectively to eliminate infectious organisms, prevent the spread of infection, and maintain the overall health of the body.