Dendritic cell (coloured IA-SEM).
Dendritic cells (DCs) are immune cells and their main function is to process antigen material and present it on the surface to other cells of the immune system. That is, dendritic cells function as antigen-presenting cells. They act as messengers between the innate and adaptive immunity. Dendritic cells are present in tissues in contact with the external environment, such as the skin (where there is a specialized dendritic cell type called Langerhans cells) and the inner lining of the nose, lungs, stomach and intestines.