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the most distensible portion of the GI tract
oblique layer churn enzymes
the muscularis externa of the stomach has an extra layer termed the ____ ____ which enables the stomach to ___ food in order to expose it thouroughly to stomach _____
the structures which produce the stomach secretions
the stomach initiates the digestion of _____
the pasty material which food is transformed into in the stomach
the entry point of food into the stomach
rugae surface area distension
the inside of the stomach has folds called ____ which provide ____ ____ for further digestion, as well as allowing ____ of the stomach.
gastric pits gastric glands
the mucosal layer of the stomach is folded to form ___ ___ and ___ ___.
gastric gland cells which secretes protective mucus
gastric gland cells which secrete hydrochloric acid
chief cells inactive protein pepsin
____ ____ secrete pepsinogen, which is the ____ form of the _____-digesting enzyme ____
G cells gastrin gastric acid
____ ____ secrete the hormone _____ which can stimulate the secretion of _____ ____
intrinsic factor vitamin b12 maturation RBCs
parietal cells secrete a polypeptide called ____ ____, needed for absorption of _____ ____ in the intestine, which is needed for ____ of ____.
mucin mucoprotein lining stomach
mucus cells in the stomach produce ____; an insoluble ________ to protect the ____ of the _____
parietal cells pepsinogen chief cells pepsin
The HCl from ____ _____ activates the _____ from _____ _____; thus producing _____
____ + _____ ------> pepsin
polypeptides smaller polypeptides hydrolysis
Pepsin breaks _____ into ______ _____, via the process of ______
proteins lipase lipids carbohydrates
_____ are only partially digested in the stomach. ______ (also secreted by the gastric glands) only partially digests _____. _____ are not digested at all.
water, alcohol, caffeine, drugs
only things absorbed by the stomach (wacd)
name given to all the stomach secretions put together
cephalic, gastric, intestinal
the 3 phases of gastric digestion
parasympathetic tastes smells sees thinks about hunger
the cephalic phase of gastric secretion is stimulated by ______ reflexes whener a person ____, _____, _____ or ____ _____ food. Also dependent on the person's level of ____.
the phase of gastric digestion which begins as the food enters the stomach
gastrin gastrin stimulates more gastric juice
in the gastric phase, the food entering the stomach triggers the release of _____ from the stomach wall and the ____ in turn ____ the production of _____ _____ _____.
the phase of gastric digestion that begins as the food leaves the stomach and enters the small intestine
chyme intestinal intestinal gastrin gastric gland
in the phase of intestinal gastric digestion, ____ stimulates _____ cells to release a hormone (____ ____) that again enhances ____ ____ secretions
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