The gastrointestinal microbiome is a subset of the

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: tect 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 Diaphragm abdominal or peritoneal 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 • esophagus • one way Seconds later Bolus moves 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...
View Full Document

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.

Ask a homework question - tutors are online