Question

Why is gap junction called gap junction? Where is the gap?​

Answer 1

gap junctions are a specialized intercellular connection between a multitude of animal cell-types. They directly connect the cytoplasm of two cells, which allows various molecules, ions and electrical impulses to directly pass through a regulated gate between cells.

Answer 2

Gap junctions were so named because of the "gap" shown to be present at these special junctions between two cells.

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