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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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what is a duodunm
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recieves chyme from stomach and digestive sectertions from pancreas and liver
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What does the liver produce
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bile and fats
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why are intestinal villi and micro villi important
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they increase the absorbtion area by a factor of 600
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What is the function of the large intestine
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reabsorbtion of water, absorbs vitamin K, biotin. Bs from bacteria in colon
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What is chyme
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A thick liquid which helps to break down food in the stomach and kill pathogens which enter with the food
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the stomach mby waves of concentration and relaxation called what
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peristalsis
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what is and incomplete digestive sysmtem
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a saclike, branching gut caviety having a single opening at the start of a tubular pharynx, and food exits through the same opening
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flatworms, cnidarians and a few other small invertabrates have these
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What is the function of the illum
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additional absorbtion
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it is part of the small intestine
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What is a complete digestive system
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a tube with an opening at one end for taking in food and an opening at the other end for eliminating food
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The three products of gastric glands
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1) mucus
2) hydrochloric acid 3)pepsinogen |
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deifne ingenstive feeders
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organisms which have mouth parts and eat their food.
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define absorptive feeders
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Organisms which do not have mouth parts, but instead absorb their food
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Ingestive feeders have either a what or a what digestive system
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complete or incomplete
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what are the four stages of food processing
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1) ingestion
2) digestion 3) absorbtion 4) elimination |
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functions of saliva
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- lubricate food to be swallowed
- certain enzymes kill germs - begin breaking down carbs |
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what is the function of a JeJunum
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Where most of the digestion and absorbtion happens
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