The Vertebrate (mostly human) Digestive System Mouth ...
The Vertebrate (mostly human) Digestive System Mouth ...
The Vertebrate (mostly human) Digestive System Mouth ...
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Small Intestineabout 6 m longcomposed of three sections - duodenum, jejenum, ileummost digestion occurs in duodenum and jejunumDuodenum is 25 cm long - remainder is jejenum and ileumreceives chyme, pancreatic enzymes, bile from liverEpithelial wall hasmany folds - villiVilli have cytoplasmicprojections-microvilliBoth increase surfacearea for absorption andsecretion