PSYC 211 Lecture Notes - Lecture 6: Ghrelin, Duodenum, Glycogen

• School: McGill University
• Department: Psychology
• Course: PSYC 211
• Professor: Gary Brouhard

Document Summary

Duodenum (first portion of small intestine) actually triggers the release of ghrelin from the stomach because food from the stomach goes into the duodenum next. The mouth has these detectors as well, and the duodenum (chemoreceptors = afferent axons, transmit satiety signal to the brain): signals from the duodenum, cck is a satiety signal secreted by the duodenum is response to food ingestion. The brain has an idea of how much body fat you should have to support your body during times of fasting. feed them, they will not eat anything, because they are already getting all their nutrients through a tube. Same thing for if we starve animals: once we finish starving them, they will gradually eat more and more to reach their set weight. food intake once it"s allowed to eat how it pleases. When we force- increase of leptin in the bloodstream. (cid:498)leptin provides a negative homeostatic feedback signal that decreases hunger(cid:499).