Line 1: Line 1: −
<big><center>[[Alimentary - Anatomy & Physiology|'''BACK TO ALIMENTARY - ANATOMY & PHYSIOLOGY''']]</center></big>
+
#REDIRECT[[:Category:Large Intestine - Anatomy & Physiology]]
 
  −
==Introduction==
  −
 
  −
The large intestine extends from the [[Ileum - Anatomy & Physiology|ileum]] of the [[Small Intestine - Anatomy & Physiology|small intestine]] to the anus. It absorbs water from the ingesta and stores faeces prior to defeacation. Every species has a large microbial population living in the large intestine, which is of particular importance to the [[Hindgut Fermenters - Anatomy & Physiology|hindgut fermenters]]. For this reason, hindgut fermenters have a more complex large intestine with highly specialised regions for fermentation.
  −
 
  −
The large intestine can be divided into:
  −
 
  −
*[[Caecum - Anatomy & Physiology|Caecum]]
  −
*[[Colon - Anatomy & Physiology|Colon]]
  −
*[[Rectum - Anatomy & Physiology|Rectum]]
  −
 
  −
==Structure==
  −
 
  −
 
  −
==Function==
  −
 
  −
 
  −
==Vasculature==
  −
 
  −
 
  −
==Innervation==
  −
 
  −
*Like the [[Small Intestine - Anatomy & Physiology|small intestine]], the large intestine recieves sympathetic and parasympathetic innervation.
  −
*Neurones interact with the myenteric plexus to affect contractility, and with the submucosal plexus to affect secretions.
  −
**The '''sympathetic '''have coeliac, cranial mesenteric and caudal mesenteric ganglia.
  −
**As the sympathetic fibres leave the ganglia, they surround their respective artery.
  −
**'''Parasympathetic''' innervation stimulates peristalsis.
  −
 
  −
==Lymphatics==
  −
 
  −
 
  −
==Histology==
  −
 
  −
*The muscosa of the large intestine is smooth; there are '''no villi'''.
  −
*There are numerous scattered lymph nodules.
  −
*Taenia may be present.
  −
 
  −
==Species Differences==
  −
 
  −
===Carnivore===
  −
 
  −
===Ruminant===
  −
 
  −
===[[Hingut Fermenters|Horse]]===
  −
 
  −
===Pig===
  −
*Taenia present
  −
 
  −
==Links==
  −
[[The Small and Large Intestines|Pathology of the Small and Large Intestine]]
 
Author, Donkey, Bureaucrats, Administrators
53,803

edits