Chemical messenger

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A chemical messenger is any compound that serves to transmit a message, and may refer to:

  • Hormone, long range chemical messenger
  • Neurotransmitter, communicates to adjacent cells
  • Neuropeptide, a protein sequence which acts as a hormone or neurotransmitter. The blood or other body fluids transport neuropeptides to non adjacent target cells, where neuropeptides exert their effect.
  • Pheromone, a chemical factor that triggers a social response in members of the same species

See also