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What is How an electrical synapse is different from a chemical synapse? and explain in detail?
Ans. (c) Connexons are involved in electrical synapse(Ref: Ganong's Review of Medical Physiology, 25th ed., ch-2, p. 41-42)Electrical synapse uses Gap junctionsGap junctions permits substances to pass between the cells without entering the extracellular fluid (ECF)Gap junctions are composed entirely of an integral membrane protein called connexonsEach connexon is made up of six protein subunits called connexinsGap junctions are abundant in cardiac muscles which are called as intercalated discs. It is because of this, cardiac muscle functions as single unit called as functional syncytiumGap junctions are also seen in single unit smooth muscles seen in visceral organs