2023年11月3日 · The thoracic splanchnic nerves originate from the thoracic and lumbar segments of the spinal cord, T1-L2. The fibers of these nerves then travel within the white rami communicantes and pass through the ganglia of the sympathetic trunk without synapsing.

Thoracic splanchnic nerves are splanchnic nerves that arise from the sympathetic trunk in the thorax and travel inferiorly to provide sympathetic supply to the abdomen. The nerves contain preganglionic sympathetic fibers and general visceral afferent fibers.

2024年1月30日 · The thoracic splanchnic nerves arise from the lower thoracic sympathetic ganglia's medial branches. The thoracic splanchnic nerves are organized into 3 pairs: the greater splanchnic, lesser splanchnic, and least splanchnic nerve pairs.

The splanchnic nerves are paired visceral nerves (nerves that contribute to the innervation of the internal organs), carrying fibers of the autonomic nervous system (visceral efferent fibers) as well as sensory fibers from the organs (visceral afferent fibers).

2024年3月5日 · Lower Thoracic Splanchnic Nerves The lower thoracic splanchnic nerves transmit sympathetic signals to abdominal and pelvic organs, regulating functions such as blood flow, digestion, and stress responses and transmitting visceral pain sensation.

2022年12月13日 · The thoracic splanchnic nerves are three paired autonomic nerves that provide sympathetic innervation of the abdominopelvic viscera and vessels. They contain efferent and afferent fibers.

2024年1月31日 · The greater splanchnic nerve (GSN) arises from the sympathetic chain in the spinal cord's thoracic region. The GSN innervates the upper gastrointestinal tract's distal segment and the foregut derivatives, providing inhibitory signals to these visceral organs.

The greater splanchnic nerve (GSN) is formed by branches of the 5 th to 9 th thoracic sympathetic ganglia, the lesser splanchnic nerve (LSN) from 10 th to 11 th thoracic sympathetic ganglia and the least splanchnic nerve from the 12 th thoracic ganglion.

The thoracic splanchnic nerves provide afferent and efferent autonomic (primarily sympathetic) and sensory innervation to many of the retroperitoneal viscera of the upper abdominal area.

Thoracic splanchnic nerves are derived from medial branches of the lower seven thoracic sympathetic ganglia, with the greater splanchnic nerve comprising the more cranial contributions, the lesser the middle branches, and the least splanchnic nerve usually T11 and/or T12.