Pulmonary plexus

Definition

The pulmonary plexus is a network of nerve fibers located at the root of the lungs, involved in the autonomic regulation of respiratory functions. It comprises both sympathetic and parasympathetic nerves that control bronchoconstriction, vasodilation, and mucous secretion within the lungs.

Related terms

Autonomic Nervous System:

The part of the nervous system responsible for controlling involuntary body functions like heartbeat, digestion, and respiration.

Bronchoconstriction: The narrowing of the bronchi in the lungs due to the tightening of surrounding smooth muscle, often leading to breathing difficulties.

Vasodilation:

The widening of blood vessels resulting from relaxation of smooth muscle cells within their walls, which can increase blood flow to an area