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Digestion
Ch 41
15
Biology
12th Grade
03/24/2011

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Term
oral cavity
Definition
teeth, tongue
mechanical digestion
salivary amylase
Term
mechanical digestion
Definition
carbs start to get digested
Term
pharynx
Definition
ringed muscles move food
Term
epiglottis
Definition
prevents food from going down trachea instead of esophagus
Term
peristalsis
Definition
contraction of muscles forcing food down esophagus
Term
Stomach
Definition
sphincters
gastrin
gastric juice
acid chyme
Term
gastrin juice
Definition
HCl=low pH
Term
stomach digests:
Definition
proteins
Term
small intestine
Definition
duodenum
alkaline solution
secretion
hydrolytic enzymes
villi, microvilli
Term
duodenum
Definition
12-18 inches long
enzymes produced
carb and protein and lipid digestion completed
Term
jejunum and ileum
Definition
large surface area
absorption occurs in villi
water absorption
Term
pancreas
Definition
hydrolytic enzymes
trypsinogen
trypsin
Term
liver
Definition
adds bile to small intestine
Term
emulsification
Definition
break down of large pieces of fat into smaller ones
preparation for chemical digestion
Term
Hepatic portal vein
Definition
drains blood from gastrointestinal tract into liver
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