File:Smooth muscle histology 002.jpg

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Smooth Muscle Histology

Histological section from the colon wall, (Stain - Haematoxylin Eosin)

Showing tunica muscularis and myenteric plexus (Auerbach's plexus).


Embryology Historic Terminology The historic name for myenteric plexus is Auerbach's plexus. In 1864 Auerbach first described the myenteric plexus lying between the longitudinal and circular muscle layers.


Smooth Muscle Histology: Labeled Colon low | Labeled Colon high | Colon x40 | Colon x40 | Ileum x10 | Oesophagus x10 | Seminiferous tubule x40 | Uterus myometrium x10 | Uterus myometrium x40 |


Gastrointestinal Tract Plexuses (enteric nervous system)
Myenteric plexus Submucosal plexus
Auerbach's plexus Meissner's plexus
Leopold Auerbach (1828–1897) a German anatomist and neuropathologist. Georg Meissner (1829–1905) a German anatomist and physiologist.
  • first formed plexus
  • lies between the outer longitudinal and inner circular smooth muscle layers of muscularis externa
  • provides motor innervation to both layers
  • secretomotor innervation to the mucosa
  • both parasympathetic and sympathetic input
  • forms 2-3 days after the myenteric plexus
  • formed by cells migrating from the myenteric plexus
  • innervates smooth muscle of the muscularis mucosae
  • only parasympathetic fibers
  Links: enteric nervous system | intestine | neural crest | PMID 25428846



Links: Histology | Histology Stains | Blue Histology images copyright Lutz Slomianka 1998-2009. The literary and artistic works on the original Blue Histology website may be reproduced, adapted, published and distributed for non-commercial purposes. See also the page Histology Stains.


Cite this page: Hill, M.A. (2024, April 24) Embryology Smooth muscle histology 002.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Smooth_muscle_histology_002.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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