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Small Intestine - Anatomy & Physiology (view source)
Revision as of 08:42, 7 July 2008
, 08:42, 7 July 2008→Duodenum
**Produce an alkaline secretion which neutralises stomach acid.
**Produce an alkaline secretion which neutralises stomach acid.
**Open into the crypts above in the mucosa.
**Open into the crypts above in the mucosa.
*Lamina muscularis is smooth muscle.
**Contraction of smooth muscle shortens the villus. This helps to pump out absorbed products of digestion. Relaxation of smooth muscle lengthens the villus which increases surface area, facilitating absorption.
===Jejunum===
===Jejunum===