The purpose of the organs of the digestive system is to take in food, break it down into small particles which can be absorbed into the blood, and eliminate waste. The core of the system is the alimentary canal or gastrointestinal tract (GI tract) which is a tube extending from the oral cavity (mouth) to the anus.
The alimentary canal is composed of the oral cavity, oropharynx, esophagus, stomach, small intestine, large intestine, and rectum. Accessory organs, including the teeth, salivary glands, pancreas, liver, and gall bladder, assist in the mechanical and chemical digestion of food.
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All you need is a proper diet of fresh fruits and vegetables and get plenty of exercise and you'll be fine. Ever heard those words from your doctor? If that's all heshe recommends then you're missing out an important ingredient for health that he's not telling you. Fact is that you can adhere to the strictest diet, watch everything you eat and get the exercise of amarathon runner and still come down with diabetic complications. Diet, exercise and standard drug treatments simply aren't enough to help keep your diabetes under control.