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Digestive_System

2013-11-13 来源: 类别: 更多范文

Digestive System Digestive System The digestive system is the the group of organs that changes food to carbohydrates, fats, and proteins and used by our body. Digestion takes places begins form our mouth and ends with our anus. the function of our digestion system are to ingest food, digest into nutrients, cross our plasma mambranes, absorb nutrients and eliminate indigestible remains. our stomach is our main organ because it mixes the food and breaks down into unis that can be taken into carbohydrates, fats and proteins which can be used by our body. There are different parts of main organs of our digestive system, esophagus, stomach, large intestines, small intestine, liver, pancrea and finally our anus. As our digestion begins in our mouth, the food is cut an dchopped by our teeth. Our tongue helps mix the food with saliva so it can be swallowed easily. From our mouth, the food is swalllowed into a transportube called esophagus. Esophagus actually carried food to our stomach, through before that there is a flap called epiglottis which is an air passage and the food passage in the pharynx. when you swallow, the air passage will automatically blocked by itself so the food won't enter the esophagus though our air way. Our stomach is shaped as food, fat, intestine, diet, called, body, small, proteins, protein, liver, fats, eat, digestive, colon, vitamins, through, system, stomach, small, passed, organs, nutrients, mouth, large, good, fruits, form, carbohydrates, air, vegetables, sugar, stored, shaped, remains, product, passage, oil, nutrition, now, needed, need, maronutrient, main, include, important, helps, health, guide, grains, glucose
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