Information in simple English

Why cell communicate with each other in human body?

Cell communication is the ability of a cell to receive, process and transmit signals with its environment and with itself.

When cells communicate with their neighbouring cells, evolution of organs, tissues take place which in turn make a whole living organism. Hence intracellular communication is necessary within a cell.

Extracellular signals:

  • Exocytosis

Gap junctions:

  • Direct communication between adjacent cells
  • Specialized protein channels 

Autocrine signalling:

  • Paracrine signalling
  • Endocrine signals
  • Juxtracrine


  • Proteins through which cells receive information from their neighbours
  • Cell surface receptors
  • Intracellular receptors

Cellular communication allows the homeostasis process to regulate the internal conditions for an organism to survive