Cell Junctions

Gap junctions abundant in Muscular tissue

Adherent or anchoring junctions, formed by interacting proteins of the cadherin family, are points of strong attachment holding together cells of the epithelium.

Zonulae occludens is another name of Gap junctions

Gap junctions (Nexus) permit the exchange between cells of molecules. Signaling molecules such as some hormones, cAMP and cGMP and ions can move through gap junctions, causing the cells in many tissues to act in a coordinated manner. Such as-the heart’s coordinated beats.

The processes of astrocytes are united to those of other astrocytes through gap junctions. Astrocytes communicate with one another through calcium channels. Such communication plays a role in regulation of synaptic activity and in the metabolisms of neurotransmitters and neuromodulators.

Transitional epithelium prevents urine from leaking of the bladder due to Tight junction