Esophageal plexus

Esophageal plexus
Nerve: Esophageal plexus
The tracheobronchial lymph glands. (Esophageal plexus visible at bottom center.)
Course and distribution of the glossopharyngeal, vagus, and accessory nerves.
Latin plexus oesophageus
Gray's subject #205 913
From vagus nerve and sympathetic trunk
To esophaguas(same fibers make up the cardiac plexus

The esophageal plexus is formed by fibers from two sources: 1.branches of the vagus nerve 2.visceral branches of the sympathetic trunk. The esophageal plexus and the cardiac plexus contain the same types of fibers and are both considered thoracic autonomic plexus(es).


Parasympathetic Fibers

1. The Vagus nerve delivers two fiber types to the esophageal plexus:

  • A. Preganglionic Parasympathetic fibers (Preganglionic fibers) - These fibers have their cell bodies located in the dorsal motor nucleus of the vagus and they will synapse on the terminal ganglia in the walls of the esophagus.
  • B. Afferent fibers- These fibers are primarily concerned with autonomic reflexes and they have their cell bodies in the inferior ganglion of the vagus.

"Note": These vagal fibers in the esophageal plexus reform to make the anterior vagal trunk (left vagus) and the posterior vagal trunk (right vagus). Anterior and posterior being terms in relation to the esophagus

Sympathetic Fibers

2. The visceral branches of the sympathetic trunk also deliver two fiber types to the esophageal plexus

  • A. sympathetic postganglionic fibers- The cell bodies of these fibers are located in the sympathetic trunk ganglia. The cell bodies of the preganglionic fibers, the first neuron of this two neuron chain, are located in the intermediolateral cell column (IMLCC) of the thoracic spinal cord.
  • B. Afferent fibers- These fibers are primarily concerned with pain and have cell bodies located in the dorsal root ganglion.

Additional images

See also

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • esophageal plexus — n a nerve plexus formed by the branches of the vagus nerve which surround and supply the esophagus * * * plexus esophagealis, plexus esophageus p. oesophageus …   Medical dictionary

  • plexus oesophagealis — plexus oesophageus [TA] esophageal plexus: a plexus surrounding the esophagus formed by branches of the left and right vagi and sympathetic trunks and containing also visceral afferent fibers from the esophagus; it is subdivided into anterior and …   Medical dictionary

  • plexus — A network or interjoining of nerves and blood vessel s or of lymphatic vessels. [L. a braid] abdominal aortic (nervous) p. [TA] an autonomic p. surrounding the abdominal aorta, directly continuous with the thoracic aortic p. superiorly and …   Medical dictionary

  • Celiac plexus — Solar plexus redirects here. For the solar plexus chakra in mysticism and Hinduism, see Manipura. Nerve: Celiac plexus The right sympathetic chain and its connections with the thoracic, abdominal, and pelvic plexuses. (Label for celiac plexus at… …   Wikipedia

  • Auerbach's plexus — Nerve: Auerbach s plexus The myenteric plexus from the rabbit. X 50. LAYERS: serosa longitudinal muscle myenteric plexus circular muscle submu …   Wikipedia

  • Meissner's plexus — Nerve: Meissner s plexus The plexus of the submucosa from the rabbit. X 50. LAYERS: serosa longitudinal muscle myenteric plexus circ …   Wikipedia

  • Ovarian plexus — Nerve: Ovarian plexus Latin plexus ovaricus Gray s subject #220 987 From renal plexus In the female, the ovarian plexus arises from the renal plexus, and is distributed to the …   Wikipedia

  • Middle rectal plexus — Nerve: Middle rectal plexus Latin plexus rectalis medius From inferior hypogastric plexus The middle rectal plexus is a nerve plexus which supplies the middle part of the rectum. It is a branch of the inferior hypogastric plexus …   Wikipedia

  • supra-esophageal ganglion — Nerve plexus above esophagus in head of malacostracans [Moore and McCormick, 1969]. Nerve plexus above esophagus, equivalent to brain [McLaughlin, 1980]. (Order Cladocera): Main part of brain above (in front of) esophagus. Consists of… …   Crustacea glossary

  • branch — An offshoot; in anatomy, one of the primary divisions of a nerve or blood vessel. A b.. See ramus, artery, nerve, vein. SYN: ramus (1) [TA]. accessory meningeal b. SYN: pterygomeningeal artery …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”