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The 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 membranes, absorb nutrients and eliminate indigestible remains. our stomach is our main organ because it mixes the food and breaks down into unis tha 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, pancreas and finally our anus.
As our digestion begins in our mouth, the food is cut an d chopped by our teeth. Our tongue helps mix the food with saliva so it can be swallowed easily. From our mouth, the food is swallowed into a transportable 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 wont enter the esophagus though our air way. Our stomach is shaped as a J- shaped organs, when food is present, the stomach will mixing food with gastric juice, after that it will churns food into a liquid called chyme, and it will leaves the stomach enters the small intestine.
the small intestine is a longest part of our digestive tract of human. food remains in the small intestine for several hours. Two large gains are the liver and the pancreas, which connect with the small intestine by ducts or tubes. Fluid from the areas is called pancreatic juice.
fluid from the liver is called bile. bile is stored in the gallbladder helps digest carbohydrates, proteins and fats. Inside the small intestine, theres a lot of finger like folds called view. the digested food is passed through the cell membranes of the villi into the blood, which cary it to cells. The body can then use the food for energy and growth. Material now form small intestine passed into the large nesting.
the large intestine is made up of ascending colon, the transverse colon, an date descending colon. Here most of the water that was mixed with the food is removed through the walls of the large intestine. the waste is turned into solids that are passed form the body by excretion. Our body requires three major classes of maro nutrition which are carbohydrate, protein and fat. mico nutrition such as vitamins and minerals also necessary for optimum cellular metabolism. Now any, there are more and more people become interested in eating for good health.
A diet is a natural supplemented by vitamins minerals and health food. all natural foods such as vegetables, fruits, nuts, grains, eggs milk, seafood, and meat. The variety of nutrition ensures many nutrients are need for all body processes. Several nutritional studies that a result of imbalance diet which may cause into diseases, illness and cancer.
Therefore, a good diet plan is important. A good dietary recomendations is go by the food guide pyramid-a guide to daily food choices. An ideal diet include grains, fruits and vegetables in the diet. meats and dairy products are needed in limited and at last fats, sweets and oils product. Most of the time, a vegetarian diet is recommended because vegetables and fruits contains fiber, vitamins and mineral. One of the maro nutrient is carbohydrates.
Carbohydrates are digested to simple sugar and converted to glucose. Glucose is stored by the liver. To reduce carbohydrate: 1. eat fewer sugar, 2. eat fresh food instead of canned fruit with syrup. Second important maro nutrient is protein.
Food in protein include meat, fish, dairy product, nuts most of our structural proteins found in muscles, skin, hair and nails. Third is fat. Fat and cholesterol are both lipids. Fat is not just found in buttle or oil, it can also found in animals protein. Sometimes we have to be very careful of what we eat, although fat is needed in our human body but it could be also increase the risk of colon, pancreatic cancer. Here are some dietary to reduce fat, limit your intake of oil and butter, remove skin from poultry, eat non-fat or low fat food and use stream, broil or bake rather then fry.
I think being eating regularly and healthy is important. we should follow the pyramid guide to follow what we need everyday for nutrition. 328
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Research essay sample on Carbohydrates Fats Small Intestine
