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Circuitry of the Enteric Nervous System

Jim Hutchins

 

Objective 3. Explain the functional circuitry of the enteric nervous system.

Sensory Mechanisms

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam ante nulla, pellentesque non erat in, fermentum blandit ante. Sed fringilla id neque sed sollicitudin. Nunc porttitor vehicula odio eget commodo. Nam aliquet risus ac mi facilisis dapibus molestie id neque. Nunc eros nibh, molestie et vehicula id, volutpat sed nisi. Cras pellentesque, nisl eu tristique ullamcorper, nibh lorem ultricies odio, sed scelerisque ante odio id justo. Praesent congue fringilla arcu et laoreet. Fusce rhoncus vel sapien at cursus. Quisque vitae nulla rutrum, venenatis ligula non, convallis erat. Aliquam sit amet nunc nibh. Fusce placerat diam et neque convallis, eu faucibus mi auctor. Mauris tortor tortor, mollis non varius a, tempor nec augue. Aliquam nec tellus fringilla lectus tempor cursus. Nullam sagittis maximus eros, sit amet posuere mauris pellentesque in.

Reflex Pathways

Diagram showing the reflex pathways mediated by the enteric nervous system.Quisque imperdiet eros id orci laoreet, eu tempus lectus viverra. Fusce ullamcorper, velit ut ultrices tempus, neque mi consectetur magna, eu condimentum diam est euismod nisi. Integer ut lorem justo. Mauris tincidunt, ante sed euismod venenatis, massa orci fringilla magna, malesuada pulvinar ante erat in erat. Praesent ut porta turpis. Integer accumsan, metus et interdum varius, tortor purus suscipit libero, eget tempor arcu nisl vitae velit. Duis at commodo mauris, at scelerisque turpis. In hac habitasse platea dictumst. Aenean faucibus tincidunt dui ac vulputate.

Pattern Generators

Diagram showing how peristaltic waves are created by the rhythmic activity of the enteric nervous system.Fusce sit amet eros vitae arcu eleifend rutrum. Donec convallis sed libero vel tincidunt. Mauris varius malesuada malesuada. Curabitur nec orci est. Morbi vulputate massa eu dui fringilla, ut placerat ante semper. Sed ac ante elementum, convallis sem pharetra, fermentum dui. Sed at mi et urna vestibulum aliquet ac non purus. Sed nec consequat augue. Curabitur gravida mollis mi, a commodo mauris lacinia non. Nam consectetur elit elit. Suspendisse potenti. In sed posuere justo, in semper lectus. Quisque lacinia massa mi, a sagittis est ultricies nec. In odio lectus, congue in mauris eget, venenatis ultrices urna. Vivamus condimentum mi non elit efficitur posuere. Ut pharetra congue neque tempus suscipit.

Diagram showing how the interstitial cells of Cajal act as pacemakers in the enteric nervous system.Maecenas magna sem, venenatis ac vulputate id, malesuada quis dui. Nunc velit mauris, finibus vel suscipit at, aliquet id lectus. Donec ut leo sit amet ante porttitor efficitur sed a tortor. Nullam sodales, diam at efficitur ornare, arcu ipsum feugiat lacus, ut mattis sem dolor a sapien. Donec condimentum iaculis enim eu dapibus. Curabitur vitae tellus non arcu vestibulum euismod quis vitae ante. Donec non turpis purus. Vivamus ex turpis, sodales non lectus in, convallis volutpat magna. Etiam fringilla augue ex, non auctor arcu rutrum volutpat. Vivamus semper lobortis erat, a ultrices libero dictum non. In sollicitudin ac elit sed tincidunt. Aliquam in commodo magna. Proin sollicitudin justo eget lobortis vehicula. Pellentesque sed ligula vel justo fringilla lacinia sed vel quam.

Sed in nunc quis nunc vestibulum facilisis ac vestibulum lectus. Vestibulum congue sapien quis ante tempor, eget ornare urna interdum. Donec ullamcorper eget urna ut ornare. Quisque id aliquam quam, eget malesuada diam. Vestibulum ultricies, mi ut molestie dictum, sapien velit tempus tortor, eu sollicitudin ligula augue iaculis dolor. Fusce iaculis vitae tellus vitae cursus. Suspendisse semper, nunc sit amet tincidunt lobortis, nunc turpis laoreet lacus, id lobortis nulla nisl non mi. Sed et felis sed nisl efficitur lobortis. Vivamus aliquet aliquam pharetra. Pellentesque volutpat ante nibh, a luctus massa auctor ut. Praesent ut nibh vel lacus facilisis posuere. Mauris mattis quam in orci egestas fringilla et sed metus. Cras pharetra facilisis auctor.

Media Attributions

  • Enteric Obj3Fig1 18_2020_3543_Fig3_HTML © Candice Fung & Pieter Vanden Berghe is licensed under a CC BY (Attribution) license
  • Enteric Obj3Fig2 18_2020_3543_Fig2_HTML © Candice Fung & Pieter Vanden Berghe is licensed under a CC BY (Attribution) license
  • Enteric Obj3Fig3 cimb-45-00232-g003 © Laura López-Pingarrón, Henrique Almeida, Marisol Soria-Aznar, Marcos C. Reyes-Gonzales, Ana B. Rodríguez-Moratinos, Antonio Muñoz-Hoyos, and Joaquín J. García is licensed under a CC BY (Attribution) license

About the author

Dr. Jim Hutchins is an adjunct instructor at Colorado School of Mines with 45 years of teaching experience spanning K-12 through medical school. He earned his PhD in Neuroscience from Baylor College of Medicine, where his dissertation focused on acetylcholine as a neurotransmitter in the human retina, followed by postdoctoral research at Vanderbilt University on visual system development. His research contributions include highly cited work on mitochondrial superoxide dismutase and synaptic pruning in the retinogeniculate system. Dr. Hutchins has authored multiple open-access textbooks in neuroscience, medical terminology, and anatomy & physiology, creating freely accessible educational resources that have saved students over $5 million in textbook costs. He is committed to open educational resources and Creative Commons licensing, believing that knowledge should be freely available to all learners.

License

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Neuroscience Copyright © by Jim Hutchins is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License, except where otherwise noted.