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Small Intestine - Anatomy & Physiology (view source)
Revision as of 09:33, 17 July 2008
, 09:33, 17 July 2008→Regulation & Control
*Unlike the [[Forestomach - Anatomy & Physiology|stomach]], control is mainly local, with superimposed co-ordination through the extrinsic ANS.
*Unlike the [[Forestomach - Anatomy & Physiology|stomach]], control is mainly local, with superimposed co-ordination through the extrinsic ANS.
*All signals affect the small intestine via sensory neurones.
*All signals affect the small intestine via sensory neurones.
**Neurones interact with the two plexuses in the intestinal wall.
**Neurones interact with two plexuses in the intestinal wall.
**Neurones in the ''myenteric plexus'' produce changes in muscle ''contractility''
**Neurones in the ''myenteric plexus'' produce changes in muscle ''contractility''
**Neurones in the ''submucosal plexus'' produce changes in ''secretion'' and ''blood flow'' to the small intestine
**Neurones in the ''submucosal plexus'' produce changes in ''secretion'' and ''blood flow'' to the small intestine