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Splanchnic nerves
Type of nerve in the human body
Type of nerve in the human body
| Field | Value |
|---|---|
| Name | Splanchnic nerves |
| Image | Gray839.png |
| Caption | Nerves of the autonomic nervous system, with splanchnic nerves seen in center. |
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). All carry sympathetic fibers except for the pelvic splanchnic nerves, which carry parasympathetic fibers.
Types
The term splanchnic nerves can refer to:
- Cardiopulmonary nerves
- Thoracic splanchnic nerves (greater, lesser, and least)
- Lumbar splanchnic nerves
- Sacral splanchnic nerves
- Pelvic splanchnic nerves
| Nerve | Pre-/postsynaptic | autonomic system | Origin | Targets | Cardiopulmonary nerves | Thoracic splanchnic nerves | Lumbar splanchnic nerves | Sacral splanchnic nerves | Pelvic splanchnic nerves | |
|---|---|---|---|---|---|---|---|---|---|---|
| Postsynaptic | sympathetic | cervical and upper thoracic ganglia | Thoracic cavity | |||||||
| generally | Presynaptic | lower thoracic ganglia | Prevertebral ganglia | |||||||
| Greater splanchnic nerve | T5–T9 or T10 | Celiac ganglia | ||||||||
| Lesser splanchnic nerve | T10–T11 | Superior mesenteric ganglia and Aorticorenal ganglia | ||||||||
| Least splanchnic nerve | T12 | Renal plexus | ||||||||
| L1–2 | Inferior mesenteric ganglia, ganglia of intermesenteric and hypogastric plexuses | |||||||||
| sacral part of sympathetic trunk | inferior hypogastric plexus and ganglia to the pelvic viscera | |||||||||
| parasympathetic | S2–S4 | intrinsic ganglia of descending and sigmoid colon, rectum, and inferior hypogastric plexus and ganglia to the pelvic viscera |
References
References
- Essential Clinical Anatomy. K.L. Moore & A.M. Agur. Lippincott, 3 ed. 2007. Page 181
- Unless else specified in boxes, then ref is: Essential Clinical Anatomy. K.L. Moore & A.M. Agur. Lippincott, 3 ed. 2007. Page 181
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