Flashcards in GI Physiology Deck (11)
lipids degraded into ?
fatty acids and glycerol
Stomach: The gastric phase induces the greatest secretion of gastric acid and is mediated by ________, ________, and _________.
gastrin, acetylcholine, and histamine
contains the oxyntic glands which contains the oxyntic and parietal cells which synthesize HCL (Fig. 36-1), peptic or chief cells which produce pepsinogen, and
B. Pyloric area – contains pyloric glands which produce mucus and G cells which secrete gastrin
Stimulation of receptors for acetylcholine, gastrin, and histamine on the parietal cells leads to the activation of the proton pump and HCL formation
food, esp high in fat, high protein meals and acidification of the gastric antrum stimulates release
Prostaglandin E2 is important in the maintenance of the gastric mucosal barrier because it
stimulates HCO3- and mucus secretion, decreases gastric acid secretion, and enhances
mucosal blood flow.
D. Pancreatic secretion responds to cephalic, gastric, and intestinal cues like gastric secretion
1) Cephalic phase is mediated by the vagus nerve
2) Gastric phase is mediated by cholecystokinin and secretin
3) Intestinal phase is mediated by cholecystokinin and secretin
E. Response to feeding is biphasic
1) Phase 1 – stimulated by cholecystokinin and peaks 1 to 2 hours postprandially an is enzyme rich
2) Phase 2 – stimulated by secretin and peaks 8 to 11 hours postprandially and has a high HCO3- content
Name of clamp to do pursestring with EEA
Where do adult teeth emerge with respect to deciduous?
medial and rostral to the deciduous tooth