- Joined
- Dec 7, 2004
- Messages
- 324
- Reaction score
- 0
i wanted to share with everyone a new paradigm i encountered, that the mouth and stomach are very very very very (just to stress the point) similar:
mouth f(x):
1- mechanical digestion
2- chemical digestion
stomach f(x):
1- mechanical digestion
2- chemical digestion
although there are many differences between the two, the holistic concept that the mouth is the first site of digestion strikes me as extremely remarkable. The more I dwell upon this, the more I realize how important it is to have proper occlusion.
The stomach does not have teeth, therefore proper mastication will determine the course of digestion. By chewing food, we are increasing the surface area for enzymes to act-- without this, the food would be improperly digested by the stomach and subsequent organs.
Differences between the two are vast, from molecular:
mouth- salivary enzyme (aka ptaleyn)
stomach- gastric enzymes, HCl
to histological:
mouth- K stratified epi
stomach- columnar epi with vast lamina propria and third (oblique) layer of ms
However, their relationship is witness to the complexity of our digestive system, the importance of digestion, and the wonders of evolution. The mouth is literally a stomach under voluntary control that's exposed to the external environment.
Anyways, I'm sure as we grow older and older we all begin to realize how important nutrition and digestion is to our health; any feedback is appreciated.
mouth f(x):
1- mechanical digestion
2- chemical digestion
stomach f(x):
1- mechanical digestion
2- chemical digestion
although there are many differences between the two, the holistic concept that the mouth is the first site of digestion strikes me as extremely remarkable. The more I dwell upon this, the more I realize how important it is to have proper occlusion.
The stomach does not have teeth, therefore proper mastication will determine the course of digestion. By chewing food, we are increasing the surface area for enzymes to act-- without this, the food would be improperly digested by the stomach and subsequent organs.
Differences between the two are vast, from molecular:
mouth- salivary enzyme (aka ptaleyn)
stomach- gastric enzymes, HCl
to histological:
mouth- K stratified epi
stomach- columnar epi with vast lamina propria and third (oblique) layer of ms
However, their relationship is witness to the complexity of our digestive system, the importance of digestion, and the wonders of evolution. The mouth is literally a stomach under voluntary control that's exposed to the external environment.
Anyways, I'm sure as we grow older and older we all begin to realize how important nutrition and digestion is to our health; any feedback is appreciated.