A cell junction is a type of structure that exists within the tissue of some multicellular organisms, such as animals. Cell junctions consist of multiprotein complexes that provide contact between neighbouring cells or between a cell and the extracellular matrix. They also build up the paracellular barrier of epithelia and control the paracellular transport. Cell junctions are especially abundant in epithelial tissues.
There are four types of cell junctions :
Anchoring Junctions ,
Occluding Junctions
Channel Forming Junctions
Signal Relaying Junctions.
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