Junction

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Junction (Medicine)

Junction (/ˈdʒʌŋkʃən/), in the field of medicine, refers to the point or area where two or more things are joined. The term is derived from the Latin word junctio, which means a joining or a meeting.

Types of Junctions

There are several types of junctions in the human body, including:

  • Cell junction: A type of structure existing within the cell membrane that helps in the interaction and communication between cells.
  • Gap junction: A specialized intercellular connection between a multitude of animal cell-types. It directly connects the cytoplasm of two cells, which allows various molecules and ions to pass freely between cells.
  • Tight junction: A type of cell-cell junction that prevents the passage of molecules and ions through the space between cells.

Related Terms

  • Synapse: The junction between two nerve cells, consisting of a minute gap across which impulses pass by diffusion of a neurotransmitter.
  • Desmosome: A structure by which two adjacent cells are attached, formed from protein plaques in the cell membranes linked by filaments.

See Also

External links

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