Chapter 23 Part 3 Flashcards
gastric gland cell that secretes hydrochloric acid and intrinsic factor
Parietal cell
gastric gland cell that secretes pepsinogen
Chief cell
gastric gland cell that secretes a uniquely acidic mucus
Mucous neck cell
gastric gland cell that releases hormones
Enteroendocrine cell
peptide hormone that stimulates secretion of hydrochloric acid and gut motility
Gastrin
Hormone that regulates food intake, primarily by stimulating hunger and satiety
Ghrelin
Stimulates parietal cells to release HCl
Histamine
Contracts stomach muscle
Serotonin
Reduces intestinal absorption by reducing blood flow
Somatostatin
initial phase of gastric secretion that occurs before food enters the stomach
Cephalic phase
phase of gastric secretion that begins when food enters the stomach
Gastric phase
phase of gastric secretion that begins when chyme enters the intestine
Intestinal phase
What are the 3 parts of the small intestine?
Duodenum, jejunum, ileum
prevents bacteria from entering the bloodstream
MALT
Condition caused by absorptive cells of the small intestine not being able to produce lactase; enzyme that absorbs lactose
Lactose intolerance