1 / 18

GUT PHYSIOLOGY Motility-II

GUT PHYSIOLOGY Motility-II. Dr. Jack Grider Rm 12-004 Sanger Hall 828-1853 jgrider@vcu.edu. 2009. Motility: Intestine. Three types of normal motility patterns in intestine. Peristalsis Segmentation. Motility: Intestine. Two types of abnormal motility patterns in intestine.

kmoody
Télécharger la présentation

GUT PHYSIOLOGY Motility-II

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GUT PHYSIOLOGY Motility-II Dr. Jack Grider Rm 12-004 Sanger Hall 828-1853 jgrider@vcu.edu 2009

  2. Motility: Intestine Three types of normal motility patterns in intestine Peristalsis Segmentation

  3. Motility: Intestine Two types of abnormal motility patterns in intestine

  4. Motility: Intestine Two types of motility patterns predominate in the postprandial intestine: peristalsis (- - -) and segmentation (▼)

  5. Motility: Intestinal Peristalsis

  6. Motility: Intestinal Peristalsis Peristalsis is a 2-component short arc reflex

  7. (Extrinsic Afferent) / /Tk/NPY Distension (IPAN) mucosa Chemical & mechanical stimulation Motility: Intestinal Peristalsis GABA/GRP GABA/GRP CGRP Primary afferent orad caudad

  8. Motility: Intestinal Segmentation

  9. Motility: Intestinal Segmentation

  10. Motility: Intestinal Segmentation

  11. Motility: Intestine Interdigestive Motility Phase PhaseII Phase III Phase I Myoelectrical Activity Contractile Activity

  12. Motility: Intestine

  13. Motility: Intestine The simple motility patterns governed by short arc reflexes and electrical activity are further modified by Long Arc Reflexes such as the Intestino-Intestinal reflex. There are many others.

  14. Motility: Intestine

  15. Motility:Colon

  16. Motility: Colon Mass Movement Or Giant Contractions Mixing Movements Peristaltic & Antiperistaltic

  17. Motility:Defecation Reflex

  18. Motility: Defecation Extracolonic muscles play an important role in defecation

More Related