Thoracic splanchnic nerves

Thoracic splanchnic nerves
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Thoracic Splanchnic Nerves Definition

They refer to the splanchnic nerves which arise from the particular thoracic segment of the sympathetic nerves and pass inferiorly to supply sympathetic innervations to the abdomen. Such splanchnic nerves include visceral afferent and preganlionic sympathetic fibres.

Thoracic Splanchnic Nerves Types

Such nerves can be broadly classified into three main types including:

Greater Splanchnic Nerve

Such nerves pass through the diaphragm and penetrate inside the abdominal cavity, colligating the fibres at the celiac ganglia.

Lesser Splanchnic Nerve

These nerves pass inferiorly, sideways to the greater splanchnic nerves and the fibres synapse in the superior mesenteric ganglia along with their postgangolic matching part.

Least Splanchnic Nerve

Such nerves pass into the abdominal cavity. In the renal ganglia the fibres of such splanchnic nerves synapse.

Thoracic Splanchnic Nerves Anatomy

The anatomical disparity of the nerves are acquired from the medical twigs of the lower seven thoracic sympathetic ganglia. The lesser and the lower splanchnic nerves have less cranial assistance generally T11/T12, compared to the greater splanchnic nerves. The celiac plexus is a vital substitution for autonomic fibres and derives a number of thoracic splanchnic nerve fibres as it travels towards the abdominal cavity.

Thoracic Splanchnic Nerves Location

These nerves are located in the visceral portion of the thoracic sympathetic trunks.

Thoracic Splanchnic Nerves Function

The sole purpose of these fibres is to transport the sympathetic fibres to the abdominal cavity. Such nerves also carry afferent and preganglionic efferent fibres.

Thoracic Splanchnic Nerves Pictures

Take a peek at these pictures to know how these nerves appear to view.

Picture of Thoracic splanchnic nerves

Picture 1 – Thoracic splanchnic nerves

Image of Thoracic splanchnic nerves

Picture 2 – Thoracic splanchnic nerves Image

References:

http://www.gpnotebook.co.uk/simplepage.cfm?ID=-1274675140

http://en.wikipedia.org/wiki/Thoracic_splanchnic_nerves

http://www.drugs.com/dict/thoracic-splanchnic-nerves.html

Last modified on January 7th, 2013 at 4:51 pm

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