1. Ghrelin has many actions in addition to being an orexigenic hormone. Identify the FALSE statement

1. Ghrelin has many actions in addition to being an orexigenic hormone. Identify the FALSE statement about ghrelin. A. Ghrelin acts by inhibiting the NPY pathway. B. Ghrelin acts on a type of growth hormone receptor. C. Ghrelin crosses the blood–brain barrier. D. Ghrelin decreases gastric emptying. 2. Ghrelin-producing cells are mainly present in the body of the stomach. Ghrelinproducing cells are removed in a sleeve gastrectomy and they lose contact with the food in an RYGB. Changes in serum ghrelin levels after bariatric surgery is a matter of debate and controversy. Identify the TRUE statement regarding changes in ghrelin levels that have been consistently shown in most studies. A. RYGB – decreased B. BPD-DS – no change C. Sleeve gastrectomy – decreased D. LAGB – no change

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