• (noun): Originates in the brain stem and lower part of the spinal cord; opposes physiological effects of the sympathetic nervous system: stimulates digestive secretions; slows the heart; constricts the pupils; dilates blood vessels.
    Synonyms: parasympathetic nervous system
    See also — Additional definitions below

Some articles on parasympathetic:

Parasympathetic Root Of Ciliary Ganglion
... The parasympathetic root of ciliary ganglion provides parasympathetic innervation to the ciliary ganglion ... The ciliary ganglion is a parasympathetic ganglion ... Incoming parasympathetic nerve fibers form synapses with the dendrites of nerve cells within the ganglion ...
Parasympathetic Rebound
... Parasympathetic rebound is a possible delayed (over-)reaction of the parasympathetic nervous system ... system via the hormones cortisol and catecholamines (such as adrenaline) suppresses the parasympathetic activities, such as the immune- and digestive system ... When this suppression vanishes, the parasympathetic system may overreact, as typical for any Closed-loop transfer function ...
Photic Sneeze Reflex - Pathophysiology - Parasympathetic Generalization
... The parasympathetic nervous system has many neighboring fibers that respond to different stimuli ... When one stimulus activates multiple nerve fibers of the parasympathetic nervous system, parasympathetic generalization is occurring ...
Postprandial Somnolence - Physiology - Parasympathetic Activation
... and small intestine, the activity of the parasympathetic nervous system increases and the activity of the sympathetic nervous system decreases ... in the balance of autonomic tone towards the parasympathetic system results in a subjective state of low energy and a desire to be at rest, the opposite of the fight-or-fl ... the greater the shift in autonomic tone towards the parasympathetic system, regardless of the composition of the meal ...
Submandibular Ganglion - Fibers
... Like other parasympathetic ganglia of the head and neck, the submandibular ganglion is the site of synapse for parasympathetic fibers and carries other types of nerve fiber that do not synapse ... Preganglionic parasympathetic fibers from the superior salivatory nucleus of the medulla oblongata, via the chorda tympani and lingual nerve, which synapse at the origin of ...

More definitions of "parasympathetic":

  • (adj): Of or relating to the parasympathetic nervous system.