HTHSCI 1H06 Lecture 15: GI2 - Peritonuem and Stomach
29 Mar 2018
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Document Summary
It is called serosa when it is concerning the organs in the abdominal cavity: the mesothelium secretes serosal fluid for the purpose of lubrication. It is called adventitia in the esophagus and distal ends of the large intestine: there is loose/thin connective tissue that glues the tubes to its surrounding tissues. Interneurons connect the two plexus neurons: sensory neurons contain chemoreceptors and mechanoreceptors. Interstitial cells of cajal are pacemaker cells, sitting in between cells in the tissues, that set the basic rhythm and intensity of peristaltic contractions. It can be influences by ps and ss input to modify pacing. Information regarding stretch and ph is shared with the spinal cord, which results in higher brain centers (e. g. brainstem/cortex) to elicit other reflexes (e. g. Information regarding stretch and ph is shared with the spinal cord, which results in higher brain centers (e. g. brainstem/cortex) to elicit other reflexes (e. g. vomiting).
