The thoracic splanchnic nerves are visceral branches of the thoracic sympathetic trunks which are the main supply of sympathetic fibres to abdominal structures. They carry both preganglionic efferent and afferent fibres. They emerge from the fifth to the twelfth thoracic ganglia on both sides.
There are three in total:
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page