Term Name: sympathetic nervous system
Synonyms: pars sympathica divisionis autonomici systematis nervosi, sympathetic nervous system, sympathetic part of autonomic division of nervous system
Definition: The sympathetic nervous system is one of the two divisions of the vertebrate autonomic nervous system (the other being the parasympathetic nervous system). The sympathetic preganglionic neurons have their cell bodies in the thoracic and lumbar regions of the spinal cord and connect to the paravertebral chain of sympathetic ganglia. Innervate heart and blood vessels, sweat glands, viscera and the adrenal medulla. Most sympathetic neurons, but not all, use noradrenaline as a post-ganglionic neurotransmitter [GO].
Ontology: Uberon Ontology [UBERON:0000013]

Relationships
is part of: autonomic nervous system
has parts: sympathetic afferent fiber sympathetic ganglion sympathetic nerve sympathetic nerve plexus sympathetic nerve trunk sympathetic trunk
is a type of: organ system subdivision