key term
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| digestive system | the gastrointestinal system,resposible for the physical and chemical breakdow of food so that it can be take into the bloodstream and used by body cell and tissues.
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| alimentary canal | long muscular tube that begings at the mouth and indudes the mouth pharynx,esophagus,stomach,small intestine and anus
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| mouth | the bucal cavity,recives food as it enters the boby
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| teeth | special structures in the mouth that physically break down food by chewing.
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| tongue | muscular organ that contains special recepors(tastebuds,taste sweet,salt,sour,and bitter sensations
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| salivary glands | the parotid sublingual and submandibilar produce a liquid "saliva"
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| pharynx(throat) | The tube that connects the mouth to the internal body cavity in which food is digested.
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| esophagus | the muscular tude dorsal to (behind)the trachea and receives the bolus from pharyxn and cares the bolus the stomach
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| peristalsis | rhythmic,wavelike motion of involuntay muscle
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| stomach | enlarged and dilated part of the alimentar canal
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| small intestine | coiled section of the alimentary canal ;is where the vast majority of digestion and absorption of food takes place.
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| anus | external opening of the anal canal o rectum
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| pancreas | gland that is dorsal to the stomach and that secrete insulin and digestive juices
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| liver | the largest gland inthe body and is an accessory organ to the digestive system;functions including detoxification, protein synthesis, and production of biochemicals necessary for digestion
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| gallbladder | small,muscular,sac locacated under the liver and attached to it by conective tissue
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| rectum | is the final six to eight inches of the larges instines and is a storages area for indigestible and wastes
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| large intestine | the final section of the alimentrary canal,Its function is to absorb water from the remaining indigestible food matter, and then to pass useless waste material from the body.
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| colon | last part of the digestive system;it extracts water and salt from solid wastes before they are eliminated from the body,absorb water, potassium and some fat soluble vitamins
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| vermiform appendix | contains a small projection,blind-ended tube connected to the cecum from which it develops embryologically.
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| jejunum | eight feet on length and forms the middle section of the small intestine
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| duodenum | first nine to ten inches of the small intestine.bile fromthe gallbladder and liverand parcreatic juice enter this section through ducts or tube
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| ileum | final section of the small intestine,the fuction is absorb vitamin B12 and bile salts and whatever products of digestion were not absorbed by the jejunum.
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| villi | come out from the wall of the small intestine and have additional extensions called microvilli, increases the surface area so there are more places for food to be absorbed.
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| hard palate | thin horizontal bony plate of the skull, located in the roof of the mouth. It spans the arch formed by the upper teeth.
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