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Relation

Physiological Changes During Parasympathetic Nervous System Activation

Activation of the parasympathetic nervous system leads to a series of physiological effects associated with 'rest and digest' functions. These include:

  • Pupil constriction
  • Stimulation of salivation
  • Slowing of heart rate
  • Constriction of bronchi
  • Stimulation of digestion
  • Stimulation of bile secretion
  • Contraction of the bladder

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Updated 2026-04-26

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