Parasympathetic nervous system

E431121

The parasympathetic nervous system is a division of the autonomic nervous system that promotes "rest and digest" functions by slowing heart rate and supporting routine maintenance activities of the body.

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All labels observed (1)

Label Occurrences
Parasympathetic nervous system canonical 1

Statements (49)

Predicate Object
instanceOf component of peripheral nervous system
division of autonomic nervous system
alsoKnownAs craniosacral division of autonomic nervous system NERFINISHED
antagonisticInteractionWith sympathetic nervous system
clinicalPharmacology target of muscarinic agonists and antagonists
contrastsWith sympathetic nervous system
effectOnBladder contracts detrusor muscle
relaxes internal urethral sphincter
effectOnBronchi bronchoconstriction
increased bronchial secretions
effectOnGastrointestinalTract increases digestive secretions
increases peristalsis
relaxes sphincters
effectOnGenitalSystem mediates clitoral erection
mediates penile erection
effectOnHeart decreases cardiac output
slows heart rate
effectOnHeartConduction slows atrioventricular conduction
effectOnLacrimalGlands stimulates tear secretion
effectOnLens accommodation for near vision
effectOnLiver promotes glycogen synthesis
effectOnPancreas promotes insulin secretion
stimulates exocrine secretion
effectOnPupil pupillary constriction
effectOnSalivaryGlands stimulates watery saliva secretion
gangliaLocation near or within target organs
homeostaticRole maintains baseline visceral function
majorCranialComponent vagus nerve NERFINISHED
modulates atrioventricular node
heart sinoatrial node
neurotransmitterAtEffector acetylcholine
neurotransmitterAtGanglion acetylcholine
originatesFrom cranial nerves III VII IX and X
sacral spinal cord segments S2 to S4
partOf autonomic nervous system
postganglionicFiberLength short postganglionic fibers
preganglionicFiberLength long preganglionic fibers
primaryFunction energy conservation
rest and digest response
support of routine maintenance activities
receptorTypeAtEffector muscarinic acetylcholine receptor
receptorTypeAtGanglion nicotinic acetylcholine receptor
sacralOutflowInnervates distal colon
genital organs
rectum
urinary bladder
vagusNerveInnervates gastrointestinal tract up to proximal two thirds of transverse colon
heart
lungs

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Heart regulatedBy Parasympathetic nervous system