I think that this mechanism is largly affected in pois :
https://www.sciencedirect.com/topics/medicine-and-dentistry/parasympathetic-nerveParasympathetic nerves are the major source of acetylcholine, which activates muscarinic cholinergic receptors. Muscarinic receptors are found on numerous end organs, including adrenergic nerve endings, VSM, and endothelial cells. Acetylcholine-induced activation of muscarinic receptors on VSM results in vasoconstriction.
And i think that this treed "must be" "pinned."
All this is affected in me in pois:
Sensory: From the throat, heart, lungs, and abdomen.
Special sensory: Provides taste sensation behind the tongue.
Motor: Provides movement functions for the muscles in the neck responsible for swallowing and speech.
Parasympathetic: Responsible for the digestive tract, respiration, and heart rate functioning.