Cells Border Internal

Internal border cells (or simply border cells) are a type of immune cells that are located on the surface of organs and tissues in the human and animal body. They play an important role in protecting the body from infections and other pathogenic agents through phagocytosis, that is, the absorption and destruction of microbes.

Border cells are divided into several types depending on their origin and functions in the body. The most common are macrophages, neutrophils, natural killer cells and dendritic cells. Macrophages are the largest cells of the immune system and have the ability to capture and digest bacteria, viruses, fungi and other organisms. Neutrophils are blood cells that granulate and have the ability to kill bacteria and destroy their walls. Natural killer cells are lymphocytes that have the ability to destroy cancer cells and cells infected with viruses. Dendritic cells are specialized cells of the human immune system that facilitate the capture and presentation of antigens to antigen presenting cells - T lymphocytes.

Internal border cells are localized inside organs and tissues and perform various functions in the process of healing damage and inflammation. For example, macrophages can engulf and remove dead and damaged cells from the affected area. Dendritic cells are able to synthesize antigens and transfer them to B lymphocytes to form antibodies. However, they are generally unable to capture pathogens directly.

In addition, these cells play a key role in regulating the immune response when infection or other pathological processes occur. Through their receptors, cells can interact with inflammatory proteins and signaling molecules to activate immune processes and induce a specific response to an antigen.