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Small Intestine - Anatomy & Physiology (view source)
Revision as of 08:52, 14 July 2008
, 08:52, 14 July 2008→Function
*To mix content and transport chyme.
*To mix content and transport chyme.
*To secrete emzymes for the digestion of chyme and absorb the products of digestion.
*To secrete emzymes for the digestion of chyme and absorb the products of digestion.
*Contraction of the two muscle layers facilitates mixing and transportation.
*Contraction of the two muscle layers facilitates mixing and transportation.
*There are two types of muscle contraction:
*There are two types of muscle contraction:
***Antagonistic contraction of longitudinal ''and'' circular muscle
***Antagonistic contraction of longitudinal ''and'' circular muscle
***Transports chyme through the small intestine but contractions can be weak to allow time for absorption
***Transports chyme through the small intestine but contractions can be weak to allow time for absorption
*When a peristaltic ‘’wave’’ of contraction reaches the end of the ileum, another starts in the duodenum. This is known as a ''migrating myoelectric complex''.
*When a peristaltic ‘’wave’’ of contraction reaches the end of the [[Ileum - Anatomy & Physiology|ileum]], another starts in the [[Duodenum - Anatomy & Physiology|duodenum]]. This is known as a ''migrating myoelectric complex''.
==Regulation & Control==
==Regulation & Control==