Meissner's plexus
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| Nerve: Meissner's plexus | ||
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| The plexus of the submucosa from the rabbit. X 50. | ||
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| LAYERS: serosa longitudinal muscle myenteric plexus circular muscle submucosal plexus submucosal mucosal |
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| Latin | plexus submucosus | |
| Gray's | subject #248 1177 | |
| MeSH | A08.800.050.050.850 | |
| Dorlands/Elsevier | p_24/12648478 | |
The nerves of the small intestines are derived from the plexuses of parasympathetic nerves around the superior mesenteric artery. From this source they run to the myenteric plexus (Auerbach's plexus) of nerves and ganglia situated between the circular and longitudinal muscular fibers from which the nervous branches are distributed to the muscular coats of the intestine. From this a secondary plexus, the plexus of the submucosa (Meissner's plexus, Submucous plexus, submucosal plexus) is derived, and is formed by branches which have perforated the circular muscular fibers. This plexus lies in the submucous coat of the intestine; it also contains ganglia from which nerve fibers pass to the muscularis mucosae and to the mucous membrane. The nerve bundles of the submucous plexus are finer than those of the myenteric plexus.
[edit] External links
- Physiology at MCG 6/6ch1/s6ch1_10
- Histology at USC gi/c_51
- Histology at USC gi/c_54
- Histology at USC nerv/c_28
- Dictionary at eMedicine submucosal+plexus
- Anatomy Atlases - Microscopic Anatomy, plate 10.201
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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| Upper gastrointestinal tract
Mouth | Pharynx (nasopharynx, oropharynx, hypopharynx) | Esophagus | Crop | Stomach (rugae, gastric pits, cardia, pylorus) Lower gastrointestinal tract Small intestine (duodenum, jejunum, ileum) | Vermiform appendix Large intestine: Cecum | Colon (ascending colon, transverse colon, descending colon, sigmoid colon) | Rectum (Houston valve, rectal ampulla, pectinate line) | Anal canal (anal valves, anal sinuses, anal columns) Anus: Sphincter ani internus muscle | Sphincter ani externus muscle Enteric nervous system: Meissner's plexus | Auerbach's plexus Enteroendocrine cells: G cells | Enterochromaffin cells | Enterochromaffin-like cell GALT: Peyer's patches | M cells parietal cells | chief cells | goblet cells | Brunner's glands | Paneth cells | enterocytes intestinal villus | crypts of Lieberkühn | circular folds | taenia coli | haustra | epiploic appendix |
