What is the Role of Cell Junctions in Cell Boundaries?
Cell junctions are specialized structures that facilitate the adhesion and communication between adjacent cells. Key types of cell junctions include:
Tight Junctions: Seal neighboring cells together, preventing the passage of molecules between them. Adherens Junctions: Connect the actin cytoskeleton of one cell to another, providing mechanical stability. Desmosomes: Anchor cells to each other via intermediate filaments, reinforcing tissue integrity. Gap Junctions: Allow direct communication between cells by permitting the passage of ions and small molecules.
