window.document.getElementById(’post-182′).parentNode.className += ‘ adhesive_post’;The gastrointestinal system, a complex network of organs and glands which extracts nutrients and water from the food that we eat so that they can be used by the body, processes the food in six phases. First, it mentally prepares the stomach for the meal that we are about to eat. Then, it takes food into the body, followed by moving that food through the GI tract. Next, it breaks down the food with both mechanical and chemical processes and then absorbs the digestive food into the vascular and lymphatic systems for distribution to the cells. Finally, the indigestible substances and waste products are eliminated from the body. Digestion itself is divided into two categories, those being mechanical and chemical. Mechanical digestion is the physical movement that assists chemical digestion. After the initial breakdown by chewing, food is churned by the smooth muscles of the stomach and small intestine, allowing it to mix with the enzymes that start the chemical reactions. Chemical digestion, on the other hand, is a series of chemical reactions that break down large carbohydrate, lipid, and protein molecules into smaller molecules that can enter blood […]

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