文档介绍：Digestive system
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The function of the digestive system is to prepare food for intake by body cells. Nutrients must be broken down by mechanical and chemical means into molecules that are small enough to be absorbed into the circulation. Within cells, the nutrients are used for energy and for rebuilding vital cell components. Digestion takes place in the digestive tract.
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Digestive tract
The human digestive system includes mouth, pharynx, esophagus, stomach, small intestine (duodenum, jejunum and ileum), large intestine（cecum，appendix，colon and rectum） and anus.
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Mouth, oral cavity
Or/o: oral cavity, oral administration
oral language
stomat/o: stomatitis, stomatoscopy
saliva: is the watery substance produced in the mouths. It is produced in and secreted from the salivary glands. Human saliva is composed mostly of water (%), but also includes electrolytes, mucus, antibacterial compounds, and various enzymes . The enzymes in the saliva break down some of the starch and fat in the food at the molecular level
salivary amylase
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Tooth
Dent/i:
Dentist: a medical professional who specializes
in the care of teeth
Dentalgia: toothache
odont/o:
Oligodontia: the condition of naturally having fewer than the regular number of teeth, it is also called hypodontia
Periodontitis: refers to a number of inflammatory diseases affecting the tissues that surround and support the teeth
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tongue
Lingu/o
Linguistic
Sublingual tablet: Usually a small, flat tablet intended to be inserted beneath the tongue, where the active ingredient is absorbed directly through the oral mucosa and into blood; such a tablet dissolves very promptly.
Nitroglyerin sublingual tablet: a type of vasodilator. It relaxes blood vessels, increasing the blood and oxygen supply to your heart. This medicine is used to relieve chest pain caused by angina.
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esophagus
esophagus is a muscular tub