NEUROSCI 101 Lecture Notes - Lecture 13: Gastric Bypass Surgery, Enteroendocrine Cell, Enteric Nervous System
17 May 2016
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Document Summary
Researches the role of brain perception within gut processing. Nutritional psychology - the way in which our food choices influence our behavioral and physiological responses. Pyy hormone is a gut hormone that regulates energy homeostasis. Egfp is produced alongside pyy hormone, viewed by epithelial cell histology. Gastrointestinal associated lymphoid tissue: intestine"s own immune system. 3 collections of cells: plexus, ganglia from vagus nerve. The gut is widely considered as the first brain in many prehistoric and medieval cultures. Olfactory, gustatory, visual systems have networks of labeled lines and receptors that enable the sensory organs to transduce external stimuli. However, the digestive system works differently: fewer interconnected organs. Nutrients get absorbed by gut"s sensory cells (ex. enteroendocrine cells) Downside of histology: cutting the cell only to a few microns, so you"re only seeing a segment of the entire cell. These cells aren"t in direct contact w/ blood vessels.
