Digest Syst
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| digestive system | known as the gastrintestinal system, is responsible for the physical and chemical breakdown of food so that it can be taken into the bloodsream and used by body cells and tissues
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| alimentary canal | a long muscular tube that begins at the mouth and includes the mouth (oral cavity), pharynx, esophagus, stomach, small intestine, large intestine, and anus
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| mouth | (buccal cavity), recieves food as it enters the body
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| teeth | special structures in the mouth that physically breakdown food chewing and grinding (mastication)
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| tongue | a muscular organ that contains special receptors called taste buds
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| hard palate | the body structure that forms the roof of the mouth and separates the mouth from nasal cavities`
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| soft palate | which separates the mouth from the naso pharynx
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| salivary glands | 3; the parotid, sublingual, and submandibular, produce a liquid called saliva
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| pharynx | throat; a tube that carries both air and food
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| esophagus | the muscular tube dorsal to (behind) the trachea
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| peristalsis | the esophagus relies on a rhythmic, wavelike, involuntary movement of its muscles to move the food in a forward direction
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| stomach | an enlarged part of the alimentary canal (rugae- the mucous membrane lining of the stomach contains folds)
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| small intestine | a coiled section of the alimentary canal
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| duodenum | the first 4 to 10 inchs of the small intestine
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| jejunum | approximately 8 ft in length and forms the middle section of the small intestine
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| ileum | THE FINAL 12 FT OF THE SMALL INTESTINE AND CONNECTS TO THE LARGE INTESTINE AT THE CECUM
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| villi | fingerlike projections in the walls of the small intestines
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| large intestine | the final section of the alimentary canal
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| vermiform appendix` | small intestine contains a small projection
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| colon | several divisions
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| rectum | the final 6 to 8 inchs of large intestine and is a storage area for indigestibles and wastes
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| anus | narrow canal which opens at a hole
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| liver | the largest gland in th ebody and is accessory organ to the digestive system
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| gallbladder | a small, muscular sac located under the liver and attached to ot by connective tissue
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| pancreas | a glandular organ located behind the stomach
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Created by:
Irismay07
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