There is as well sympathetic as parasympathetic innervation of the lungs.

Location:

• Parasympathetic: zone is the region OAA (vagus nerve).
• Sympathetic: the segment T₁ – T₅.

Functions = regulation of the smooth muscles in the lungs.

• Sympathetic:
  • Relaxes the smooth musculature in the lungs.
  • Decreases the secretions.
  • Widens the bronchi.
  • The respiratory resistance decreases.
• Parasympathetic:
  • Contracts the smooth muscles of the lungs.
  • Increases the secretions.
  • Narrows the bronchi.
  • The respiratory resistance increases.

To know more on treating the autonomic system of the lungs: CLICK HERE