Haustra
From Wikipedia, the free encyclopedia
Haustra | |
---|---|
Arteries of cecum and vermiform process. | |
Latin | haustra coli |
Dorlands/Elsevier | h_03/12408675 |
The haustra of the colon are the small pouches caused by "sacculation", which give the colon its segmented appearance. The taenia coli runs the length of the large intestine. Because the taenia coli is shorter than the intestine, the colon become sacculated between the taenia, forming the haustra.
Haustral contractions are slow segmenting movements that occur every 30 minutes. Haustrum distends with filling, then muscle is stimulated to contract pushing contents to the next haustrum.
[edit] External links
- SUNY Labs 39:13-0301 - "Intestines and Pancreas: Large Intestine"
- Dictionary at eMedicine haustrum
- Radiology
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 As such, some of the information contained herein may be outdated.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.
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 |