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against pathogenic microbes that enter/reside in the tract.
The gastrointestinal microbiome is a subset of the total human microbiome
-it is individually unique
-does it communicate as an organ like entity? 3 15/02/2012 Thoracic
cavity breathing effects on intestines
abdominal vs. clavicular breathing multiple layers of smooth muscle Motility Peristalsis vs. Segmentation Time zero Bolus Direction of movement Receiving segment Contraction Peristalsis
• one way Seconds later
forward No net forward movement Segmentation
• small intestine
• movement in both directions
– allows greater mixing the stomach and large intestine use these in combination 8 4 15/02/2012 Motility – sphincters open and close internal anal sphincter duodenum ileocecal valve or sphincter Diseases and disorders of motility in the GI tract
GERD – Gastroesophageal reflux disease
Gastroparesis common pyloric sphincter SBBOS Small bowel bacterial overgrowth syndrome ileocecal valve Chron...
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This note was uploaded on 01/27/2014 for the course BIOL 1080 taught by Professor Dyck during the Winter '11 term at University of Guelph.
- Winter '11