11.9: Antigen-Presenting Cells Last updated Jan 3, 2021 Save as PDF 11.8F: Adaptive Immunity and the Immunoglobulin Superfamily 11.9A: Dendritic Cells Page ID11800 ( \newcommand{\kernel}{\mathrm{null}\,}\) Topic hierarchy11.9A: Dendritic CellsDendritic cells are immune cells that function to process antigens and present them to T cells.11.9B: MacrophagesPhagocytosis is a front-line defense against pathogen attack requiring the concerted action of macrophages.