Digestive part 2 Flashcards
2 (25 cards)
first 20 teeth emerged during first two years
dedcious
difference between permanent teeth and baby teeth
premolars or biscups found in permanent teeth
sometimes found ins saliva to help inhibit bacterial growth
IgA antibodies, lysosome, defins
where are the sphincters which regulate entry/exit of food bolus
esophagus
what is special about the stomach layers
it has an oblique third layer for churning
cells in the bottom half of gastric pits
gastric glands
gastric gland cells
chief cells and paritiel cells
chief cells produce
pepsinogen
parietal cells produce
HCL
what converts inactive pepsinogen into propase pepsin?
HCL
common bile ducts
Left and right hepatic ducts
what duct doe bile back up into before it get stored in the gallbladder
cystic ducts
acts as a surfactant and emulsifier
bile
produces mainly digestive enzymes and bicarbonate ions to neutralize acidic chyme coming from stomach
pancreas
indirectly stimulates bicarbonate release
acidic chyme
stimulates rich enzyme release
nutrient rich chyme
Major protein catalyst
Enzymes
True/ False- Salivary amylase works for up to an hour in the stomach until pH drops too low and the enzyme is destroyed by pepsin and HCL
True
Finish the job of digesting carbs to monosacchrides
brush border enzymes
Mainly local control or short reflexes
Small intestine
deliver most other secretions to the small intestine
liver, gallbladder, pancreas
Chemoreceptors in the stomach detecting food chemicals and higher pH stimulate the release of the hormone
gastrin
when partially digested food enters the duodenum
intestinal gastrin is released
stimulates faster bile production in the liver
secretin
