Corpus: Splanchnic nerves
This text has been translated by an AI and may sound raw. It will be reviewed shortly. Thank you for your patience!
This text has been translated by an AI and may sound raw. It will be reviewed shortly. Thank you for your patience!
Synonym: visceral nerves
English:
Definition[Bearbeiten]
The Nervi splanchnici are the nerves of the autonomic nervous system that supply the internal organs.
Anatomy[Bearbeiten]
The nervi splanchnici consist of preganglionic fibres whose cell bodies are located in the lateral horn of the spinal cord. These fibres run via the rami communicantes albi to the paravertebral ganglia of the border cord, from where they run unconnected as nervi splanchnici to the prevertebral ganglia. They include:
| Nerve | vegetative function | segment |
|---|---|---|
| greater splanchnic nerve | sympathetic | Th5 - Th9 |
| Minor splanchnic nerve | sympathetic | Th10 - Th11 |
| implanchnic nerve | sympathetic | Th12 |
| Lumbar splanchnic nerve | sympathetic | L1 - L2 |
| sacral splanchnic nerves | sympathetic | sacral ganglia |
| pelvic splanchnic nerves | parasympathetic | S1 - S4 |
With the exception of the pelvic splanchnic nerves, which carry parasympathetic fibres, all other splanchnic nerves belong to the sympathetic nervous system.
Variants[Bearbeiten]
Standard variants of the assigned spinal cord segments are possible. The greater splanchnic nerve is sometimes assigned the segments Th5 - Th10, while the lesser splanchnic nerve can also extend from Th9 to Th11.[1]
Sources[Bearbeiten]
- ↑ Joachim Kirsch: Taschenlehrbuch Anatomie. 2nd, revised edition. Thieme, 2017, ISBN 978-3-13-144992-4.