Difference between revisions of "Rabbit Alimentary System"
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| − | + | <big><center>[[Alimentary - Anatomy & Physiology|'''BACK TO ALIMENTARY - ANATOMY & PHYSIOLOGY''']]</center></big> | |
| + | <big><center>[[Hindgut Fermenters - Anatomy & Physiology|'''BACK TO HINDGUT FERMENTERS - ANATOMY & PHYSIOLOGY''']]</center></big> | ||
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==Introduction== | ==Introduction== | ||
| + | Rabbits are monogastric hindgut fermenters that eat a herbivorous diet. [[Volatile Fatty Acids - Anatomy & Physioogy|VFAs]] are produced in the hindgut which are available to the animal for energy. | ||
| − | + | ==[[Forestomach - Anatomy & Physiology|Stomach]]== | |
| − | + | *Simple and large | |
| − | ==[[ | ||
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| − | + | ==[[Small Intestine - Anatomy & Physiology|Small Intestine]]== | |
| + | *Functions similar to other animals but there are anatomical differences. | ||
| + | *The caudal flexure of the duodenum is long and coiled, and may be referred to as the transverse part of the duodenum. | ||
| + | *The sacculus rotundus exists at the ileocaecal junction. It is an enlargement of the large intestine and contains lymphoid tissue. | ||
| − | ==[[ | + | ==[[Large Intestine - Anatomy & Physiology|Large Intestine]]== |
| − | + | ===Caecum=== | |
| − | There is an | + | *Large, about twice the length of the abdominal cavity. Folded into four parts that flex upon each other. |
| + | *Thin-walled. | ||
| + | *Visible on the external surface is a spiral constriction that runs 20-30 times around the caecum. This is related to the folding of the mucosa internally. | ||
| + | *There is an appendix at it's distal end containing lymphoid tissue. | ||
| − | == | + | ===Colon=== |
| − | + | *Has ascending, transverse and descending parts. | |
| + | *The '''ascending colon''' is very long and occupies most of the ventral abdomen. | ||
| + | *First part has taenia and haustra, the second part does not and is arranged into coils that lie in the dorsal part of the abdominal cavity. | ||
| + | *The '''transverse''' and '''descending''' colons have the same anatomical arrangement as in other species. | ||
==Coprophagia== | ==Coprophagia== | ||
| − | + | *Rabbits eat some of their faecal pellets, often produced in the early morning. | |
| − | Rabbits eat some of their faecal pellets, | + | *Pellets that are eaten differ to normal pellets as they are softer, covered in mucus and smaller. |
| − | + | *The purpose of this may be to gain access to the vitamins produced by bacteria in the caecum. | |
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Revision as of 15:43, 15 July 2008
Introduction
Rabbits are monogastric hindgut fermenters that eat a herbivorous diet. VFAs are produced in the hindgut which are available to the animal for energy.
Stomach
- Simple and large
Small Intestine
- Functions similar to other animals but there are anatomical differences.
- The caudal flexure of the duodenum is long and coiled, and may be referred to as the transverse part of the duodenum.
- The sacculus rotundus exists at the ileocaecal junction. It is an enlargement of the large intestine and contains lymphoid tissue.
Large Intestine
Caecum
- Large, about twice the length of the abdominal cavity. Folded into four parts that flex upon each other.
- Thin-walled.
- Visible on the external surface is a spiral constriction that runs 20-30 times around the caecum. This is related to the folding of the mucosa internally.
- There is an appendix at it's distal end containing lymphoid tissue.
Colon
- Has ascending, transverse and descending parts.
- The ascending colon is very long and occupies most of the ventral abdomen.
- First part has taenia and haustra, the second part does not and is arranged into coils that lie in the dorsal part of the abdominal cavity.
- The transverse and descending colons have the same anatomical arrangement as in other species.
Coprophagia
- Rabbits eat some of their faecal pellets, often produced in the early morning.
- Pellets that are eaten differ to normal pellets as they are softer, covered in mucus and smaller.
- The purpose of this may be to gain access to the vitamins produced by bacteria in the caecum.