cell-cell contact zone cell junction PMID:21458439 GO:0030054 A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix. https://orcid.org/0000-0003-2569-1939 | https://orcid.org/0000-0002-7535-4468 PMID:20511647 Planarian_Anatomy