parasympathetic nervous systems การใช้

Note that the parasympathetic nervous system is primarily directed toward the heart.
The bronchial spasm is due to the activation of parasympathetic nervous system.
Nerve fibres of the parasympathetic nervous system arise from the central nervous system.
The sphincter pupillae is stimulated through muscarinic receptors by the parasympathetic nervous system.
These chemicals primarily affect the parasympathetic nervous system and can act as anticholinergic agents.