Sympathetic trunk

Sympathetic trunk
An abdominal part of the sympathetic trunk. Coeliac ganglia are seen at the upper end.
A schematic view of the structure of general spinal nerves. The number is 1. Somatic centrifugal nerve, 2. Somatic afferent nerves, 3. 4. 5. Internal organs (sympathetic nerve) centrifugal nerve, 6. 7. Internal organs (sympathetic nerve) afferent nerves
Latin	truncus sympathicus
English	Sympathetic trunk
Organ	Peripheral nerve

The bunch of the nerve fiber that there is the sympathetic trunk (こうかんしんけいかん British: sympathetic trunk) besides the backbone and almost traverses from the bottom of the skull to a root of a tail. Right and left have by one, and the ganglions of the sympathetic nerve form a line in this fascicle.

Table of contents

Structure

A lower line does the outside in front of the backbone from the skull bottom, and the sympathetic trunk leads to a root of a tail. I am connected through each spinal nerve or ventral root and communicating branch (grey ramus communicans).

The superior border of the sympathetic trunk does an upper line more and is included from a carotid canal intracranially and forms a nerve plexus on the inner carotid. In addition, the inferior border runs coccygeal front and is put together with the other nerve trunk and forms structure called the ganglion impar (the ganglion impar may not exist).

The existing ganglion is called a paravertebral ganglion along sympathetic trunk. A ganglion classified in a paravertebral ganglion includes the following things.

• Neck
  • Height between upper neck ganglion - second cervical spine (epistropheus) and the third cervical spine includes it.
  • The height of middle neck ganglion - sixth cervical spine includes it. With a small ganglion, I may not exist.
  • Stellate ganglion (neck thoracic ganglia) - neck ganglion and the first thoracic ganglia performed concrescence, and height of the seventh cervical spine includes it. Each may become independent.

• The chest
  • The nerve fibers from the fourth thoracic ganglia gather from the twelfth thoracic ganglia - first from the first, and a heart and the lungs visceral nerve is made and is distributed over the intrathoracic internal organs. Similarly, lesser splanchnic nerve is made from the tenth and the eleventh thoracic ganglia, and greater splanchnic nerve is distributed in abdominal cavity from the ninth thoracic ganglia from the fifth. The smallest visceral nerve from the twelfth thoracic ganglia may be made.

• Hips
  • Three lumbar ganglion - normal exists, and lumbar splanchnic nerve rises, and here reaches the lower mesentery nerve plexus.

• Sacral region
  • Five exist from -4 sacral ganglia. Sacral splanchnic nerve rises, and here reaches the hypogastric plexus.

Function

The sympathetic trunk is important as a component of the sympathetic system among autonomic nervous system. The spinal nerves commute with the nerve of a high rank or the lower marrow clause via this trunk. In addition, like statement above, there are many nerves rising from sympathetic trunk directly including most visceral nerves.

Additional image e

• The structure of spinal nerves. White ramus communicans and grey ramus communicans become the communicating branch with the sympathetic trunk.

• A thoracic cross section. Sympathetic trunk runs on vertebral both sides.

• Heart, a left side view of the thoracic aorta spinal cord. The left sympathetic trunk does a lower line.

• The section of the pelvic sidewall. I show sacral plexus and a pubic region nerve plexus and relations of the sympathetic trunk.

• The right sacral plexus.

• A schematic view of the centrifugal sympathetic system.

• The run of the autonomic nerve fibers from ciliary ganglion and an upper neck ganglion to the eyes. A sympathetic fiber, blue show parasympathetic nerve fiber red.

Allied item

• Visceral nerve
• Spinal nerves
• Autonomic nervous system
• ホルネル syndrome

References

• Parent, André, Carpenter's human neuroanatomy, 9th ed. Media: Williams & Wilkins, 1996, pp.293-301. ISBN 0683067524

Outside link

• Right and left vagus nerve and sympathetic trunk in the State University of New York Brooklyn health science center - mediastinum
• The sympathetic trunk which runs the pelvis of the State University of New York Brooklyn health science center - woman, a posterolateral wall
• Relations of University of Michigan anatomy atlas - spinal cord and the autonomic nervous system
• Sympathetic trunk in the Maryland University medicine center - thorax

It is acquired by "https://ja.wikipedia.org/w/index.php?title= sympathetic trunk &oldid=47452812"

This article is taken from the Japanese Wikipedia Sympathetic trunk

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