The large intestine has a diverse design and operation likened to the small intestine, especially when it comes to nutrient absorption. While the small intestine is specialized for nutrient absorption and has facilities like villi and plicae circulares to maximize exterior space, the extensive intestine’s prior positions are to drink water, electrolytes, and some vitamins (like vitamin K) made by gut bacteria, as well as to create and keep manure.
Systems in the Large Intestine:
1. Permeable Cells (Enterocytes):
The large intestine has porous cells (equivalent to those in the small intestine) that are affected by the absorption of water and electrolytes. Yet, these cells do not have the exact comprehensive microvilli as those in the small intestine.
2. Crypts of Lieberkühn:
The large intestine has facilities named crypts of Lieberkühn, which are epithelial pits that grow into the mucosa. These tombs have goblet cells that perspire mucus to oil the intestinal ranges and reduce the activity of feces.
3. No Villi or Plicae Circulares:
Unlike the small intestine, the large intestine does not have plicae circulares. Villi are finger-like projections that significantly improve the exterior area for absorption in the small intestine, and plicae circulares are folds that also assist with nutrient absorption. The lack of these systems in the large intestine remembers its various practical guides on water absorption instead of nutrient absorption.
4. Cover Dimensions:
The large intestine has a fairly soft inner shell corresponding to the small intestine. While it does drink some nutrients like short-chain fatty acids made by bacterial fermentation of dietary fiber, it is much less efficient at nutrient absorption than the little intestine.
Conclusion:
The large intestine does not have systems equal to the villi or plicae circulares located in the small intestine. Rather, its design is more technical for drinking water and electrolytes, and for carrying and keeping waste. The lack of villi and plicae circulares skips the large intestine’s different role in the digestive method.
Lizard Species: While not true milk, some lizards perspire a nutrient-rich fluid to provide their immature. For example, the female skinks have a secretion that they give to their