teas digestive system Flashcards
chemical digestion
enzymes break down food into smaller molecules
major organs of digestive system
oral cavity, pharynx, esophagus, stomach, small intestine, large intestine
salivary glands
glands in the mouth that produce saliva to begin the chemical digestion of food
how does saliva breakdown food and make it a chemical digestion?
saliva provides an enzyme amylase and lipase to breakdown starch and lipids
enzyme amylase
digest carbohydrates and made in pancreas
lipids
fats
lipase
pancreatic enzyme necessary to digest fats
starches
complex carbohydrates
bolus
A term used to describe food after it has been chewed and mixed with saliva
pharynx
throat; passageway for food to the esophagus
epiglottis
a flap of cartilage that covers the windpipe while swallowing
esophagus
A muscular tube that connects the mouth to the stomach
peristalsis
the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward.
esophagial sphincter
prevent reflux of food back to esophagus
stomach
large (j-shaped) muscular sac that continues the mechanical (churning) and chemical digestion of food (via enzymes/acid)