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Small Intestine - Anatomy & Physiology (view source)
Revision as of 09:27, 11 July 2008
, 09:27, 11 July 2008→Histology
*Membrane bound enzymes and transport proteins are also within the epithelium.
*Membrane bound enzymes and transport proteins are also within the epithelium.
*Each villus houses a generous blood supply of capillaries that transport amino acids, monosaccharides and other digestive products and lacteals that transport triacylglycerides. Lacteals drain into the lymphatic system.
*Each villus houses a generous blood supply of capillaries that transport amino acids, monosaccharides and other digestive products and lacteals that transport triacylglycerides. Lacteals drain into the lymphatic system.
*Two types of secretion are produced in the small intestine; together they are called the ''succus entericus''. The first type of secretion is from the crypts, the second is from the Brunner's glands.
*'''Crypts''' are present at the base of each villus in the mucosa. Cell types in mucosal crypts (from luminal to basal):
*'''Crypts''' are present at the base of each villus in the mucosa. Cell types in mucosal crypts (from luminal to basal):
**''goblet'' at the tip of the crypt. Produce mucous by exocytosis.
**''goblet'' at the tip of the crypt. Produce mucous by exocytosis.