Sympathetic trunk








Sympathetic trunk

Gray847.png
Abdominal portion of the sympathetic trunk, with the celiac plexus and hypogastric plexus. (Sympathetic trunk labeled at center left.)


Gray799.svg
Scheme showing pathways (white/grey rami are spatially reversed, possibly for clarity?) of a typical spinal nerve.
1. Somatic efferent.
2. Somatic afferent.
3,4,5. Sympathetic efferent.
6,7. Parasympathetic afferent.

Details
Identifiers
Latintruncus sympathicus
TAA14.3.01.002
FMA6258

Anatomical terminology
[edit on Wikidata]

The sympathetic trunks (sympathetic chain, gangliated cord) are a paired bundle of nerve fibers that run from the base of the skull to the coccyx.




Contents





  • 1 Structure


  • 2 Function


  • 3 Additional images


  • 4 See also


  • 5 References


  • 6 External links




Structure


The sympathetic trunk lies just lateral to the vertebral bodies for the entire length of the vertebral column. It interacts with the anterior rami of spinal nerves by way of rami communicantes. The sympathetic trunk permits preganglionic fibers of the sympathetic nervous system to ascend to spinal levels superior to T1 and descend to spinal levels inferior to L2/3.[1][2][3][4][5][6][7]


The superior end of it is continued upward through the carotid canal into the skull, and forms a plexus on the internal carotid artery; the inferior part travels in front of the coccyx, where it converges with the other trunk at a structure known as the ganglion impar.


Along the length of the sympathetic trunk are sympathetic ganglia known as paravertebral ganglia.



Function


The sympathetic trunk is a fundamental part of the sympathetic nervous system, and part of the autonomic nervous system. It allows nerve fibres to travel to spinal nerves that are superior and inferior to the one in which they originated. Also, a number of nerves, such as most of the splanchnic nerves, arise directly from the trunks.



































Autonomic nervous supply to organs in the human body edit
OrganNerves[8]
Spinal column origin[8]

stomach


  • PS: anterior and posterior vagal trunks


  • S: greater splanchnic nerves


T5,T6, T7, T8, T9, sometimes T10

duodenum

  • PS: vagus nerves

  • S: greater splanchnic nerves


T5, T6, T7, T8, T9, sometimes T10

jejunum and ileum

  • PS: posterior vagal trunks

  • S: greater splanchnic nerves


T5, T6, T7, T8, T9

spleen

  • S: greater splanchnic nerves

T6, T7, T8

gallbladder and liver

  • PS: vagus nerve

  • S: celiac plexus

  • right phrenic nerve


T6, T7, T8, T9

colon

  • PS: vagus nerves and pelvic splanchnic nerves

  • S: lesser and least splanchnic nerves



  • T10, T11, T12 (proximal colon)


  • L1, L2, L3, (distal colon)


pancreatic head

  • PS: vagus nerves

  • S: thoracic splanchnic nerves


T8, T9

appendix

  • nerves to superior mesenteric plexus

T10

kidneys and ureters

  • PS: vagus nerve

  • S: thoracic and lumbar splanchnic nerves


T11, T12


Additional images



See also


  • Horner's syndrome


References


This article incorporates text in the public domain from page 976 of the 20th edition of Gray's Anatomy (1918)




  1. ^ Mader S. S. (2000): Human biology. McGraw-Hill, New York, .mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
    ISBN 0-07-290584-0;
    ISBN 0-07-117940-2.



  2. ^ Pritchard T. E., Alloway D. (1999): Medical neuroscience. Hayes Barton Press,
    ISBN 978-1-59377-200-0:https://books.google.com/books/about/Medical_neuroscience.html?id=m7Y80PcFHtsC.



  3. ^ Butler A. B., Hodos W. (2005): Comparative vertebrate neuroanatomy: evolution and adaptation. Wiley-Blackwell,
    ISBN 978-0-471-21005-4.



  4. ^ Butler, Ann B.; Hodos, William (2005-09-02). Comparative Vertebrate Neuroanatomy: Evolution and Adaptation. Wiley. ISBN 9780471733836.


  5. ^ Hall J. E., Guyton A. C. (2006): Textbook of medical physiology, 11th edition. Elsevier Saunders, St. Louis, Mo,
    ISBN 0-7216-0240-1.



  6. ^ Warrell D. A., Cox T. M., Firth J. D. (2010): The Oxford Textbook of Medicine Archived 2012-03-21 at the Wayback Machine (5th ed.). Oxford University Press


  7. ^ Greenstein B., Greenstein A. (2002): Color atlas of neuroscience – Neuroanatomy and neurophysiology. Thieme, Stuttgart – New York,
    ISBN 9783131081711.



  8. ^ ab Unless specified otherwise in the boxes, the source is: Moore, Keith L.; Agur, A. M. R. (2002). Essential Clinical Anatomy (2nd ed.). Lippincott Williams & Wilkins. p. 199. ISBN 978-0-7817-5940-3.




External links



  • Anatomy figure: 21:04-04 at Human Anatomy Online, SUNY Downstate Medical Center - "The position of the right and left vagus nerves, and sympathetic trunks in the mediastinum."


  • Anatomy photo:43:15-0102 at the SUNY Downstate Medical Center - "The Female Pelvis: The Posterolateral Pelvic Wall"


  • Atlas image: n3a6p1 at the University of Michigan Health System - "Autonomic Connections of the Spinal Cord"

  • Diagram at umm.edu










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