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passage of materials through the walls of the small instestine into the bloodstream
absorption
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small building blocks of proteins released when proteins are digested
amino acids
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enzyme secreted by the pancreas to digest starch
amylase
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terminal end or opening of the digestive tract to the outside of the body
anus
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blind pouch hanging from the cecum
appendix
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digestive juice made in the liver and stored in the gallbladder, breaks up large fat globules
bile
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pigment released by the liver in bile
bilirubin
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pointed, dog-like teeth next to incisors; also called cuspids or eyeteeth
canine teeth
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first part of the large intestine
cecum
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large intestine, consisting of the cecum; the ascending, transverse, and descending segments; and rectum
colon
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carries bile from the liver and gallbladder to the duodenum; also called choledochus
common bile duct
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elimination of feces from the digestive tract through the anus
defecation
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primary material found in teeth, covered by the enamel in the crown and protective layer of cementum in the root
dentin
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breakdown of complex foods to simpler forms
digestion
-
first part of the small intestine
duodenum
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act of removal of materials from the body
elimination
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physical process of breaking up large fat globules into smaller globules, thereby increasing the surface area that enzymes use to digest the fat
emulsification
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hard, outermost layer of a tooth
enamel
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a chemical that speeds up a reaction between substances
enzyme
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tube connecting the throat to the stomach
esophagus
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substances produced when fats are digested
fatty acids
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solid wastes; stool
feces
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small sac under the liver; stores bile
gallbladder
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starch; glucose is stored in the form of glycogen in liver cells
glycogen
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substance produced by the stomach; necessary for digestion of food
hydrochloric acid
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third part of the small intestine
ileum
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one of four teeth in the dental arch
incisor
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hormone produced by the endrocrine cells of the pancreas; transports sugar from the blood into cells and stimulates glycogen formation by the liver
insulin
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second part of the small intestine
jejunum
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pancreatic enzyme necessary to digest fats
lipase
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a large organ that secretes bile, stores sugar, iron, and vitamins, produces blood proteins, and destroys worn-out red blood cells
liver
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ring of muscles between the esophagus and the stomach; also called cardiac sphincter
lower esophageal sphincter
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the sixth, seventh, and eighth teeth from the middle on either side of the dental arch
molar teeth
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organ under the stomach; produces insulin and enzymes
pancreas
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small elevations on the tongue
papillae (singular: papilla)
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rhythmic contractions of the tubular organs
peristalsis
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throat, common passageway for food from the mouth and for air from the nose
pharynx
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large vein bringing blood to the liver from the intestines
portal vein
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enzyme that digests protein
protease
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soft tissue within a tooth, containing nerves and blood vessels
pulp
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ring of muscle at the end of the stomach nerar the duodenum
pyloric sphincter
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distal region of the stomach, opening to the duodenum
pylorus
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last section of the large intestine, connecting the end of the colon and the anus
rectum
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ridges on the hard palate and the wall of the stomach
rugae
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digestive juice produced by salivary glands
saliva
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parotid, sublingual, and submandibular glands
salivary glands
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fourth and last, S-shaped segment of the colong, just before the rectum; empties into the rectum
sigmoid colon
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circular ring of muscle that constricts a passage or closes a natural opening
sphincter
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muscular organ that receives food from the esophagus
stomach
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fat molecules composed of three parts fatty acids and one part glycerol
triglycerides
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soft tissue hanging from the middle of the soft palate
uvula
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microscopic projections in the wall of the small instestine that absorb nutrients into the bloodstream
villi (singular: villus)
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