Digestive system Intestines
Fat-soluble vitamins -- A, D, E and K -- dissolve in fat to be absorbed and stored for later use. Water-soluble vitamins are not easily stored and surplus amounts are excreted in your urine. Fat-soluble vitamins require bile acids for absorption and are stored in the liver and fatty tissue of the body. Vitamins. Vitamins are an important part of food and are absorbed through the small intestine. Vitamins are grouped based on how your body absorbs them. Water-soluble B-complex and C vitamins dissolve in water prior to absorption. The digestive system is a group of organs that does three things: • First, the digestive system breaks food down into useful nutrients, a. •. absorption. With the Digestive System Gizmo™, you can arrange the organs of the digestive system any way you like. To begin, look at the organs on the Large Organs tab. Place your cursor over each organ to learn more about it. The intestines are vital organs in the gastrointestinal tract of our digestive system. Their functions are to digest food and to enable the nutrients released from that food to enter into the bloodstream. Our intestines consist of two major subdivisions: the small intestine and the large intestine.  Bile helps break down fats in your food. Peristalsis. Digesting food is pushed through the small intestine by peristalsis. Peristalsis is a muscular movement in which alternating waves of muscle contraction and relaxation cause food to be squeezed along the digestive tract. Absorbing nutrients. Most of the nutrients in the food you eat pass through the lining of your small intestine into your blood. The lining of the small intestine is covered in tiny microvilli. Function: Chemical digestion of food and absorption of nutrients into your blood. Longest section of your digestive tract. Your small intestine is around five metres long, making it the longest section of your digestive tract. Although it is longer than your large intestine it has a smaller diameter. Absorbing nutrients. Most of the nutrients in the food you eat pass through the lining of your small intestine into your blood. The lining of the small intestine is covered in tiny microvilli. The. digestive system. is a group of organs that does three things: First, the digestive system breaks food down into useful nutrients, a process called. digestion. . Next, the nutrients move into the bloodstream, a process called. absorption. .  Stomach. In the stomach, enzymes break down food such as carbohydrates, protein and fats, so that nutrients can be absorbed farther down the GI tract, according to the National Digestive Disease Information Clearinghouse. Approximately 92 to 97 percent of the nutrients consumed, which includes carbohydrates, protein, fat, fluid, vitamins and minerals, are absorbed through the GI tract, says Sylvia Escott-Stump, a registered dietitian and published author. Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can use. Nutrients are absorbed throughout the digestive process. Specific nutrients are absorbed in the stomach and large intestines, but the majority of nutrients are absorbed in the … small intestines. 7 people found this useful. 1  The Five Major Parts of the Brain At its most basic, the brain controls the body. 
http://healthyeating.sfgate.com/body-absorb-carbohydrates-lipids-fats-proteins-8943.html http://www.westerville.k12.oh.us/userfiles/4159/Classes/5009/DigestiveSystemSE.GIZMO.pdf http://www.innerbody.com/image/dige08.html http://www.bbc.co.uk/science/humanbody/body/factfiles/smallintestine/small_intestine.shtml http://www.bbc.co.uk/science/humanbody/body/factfiles/smallintestine/small_intestine.shtml http://washington.manitowocpublicschools.org/UserFiles/Servers/Server_6324/File/Campbell,%20C%20Files/DigestiveSystemSE%20A%20and%20C%20only.doc http://www.livestrong.com/article/436603-in-which-digestive-organ-are-nutrients-absorbed/ https://en.wikipedia.org/wiki/Absorption_(digestive) http://www.answers.com/Q/Which_organs_allows_nutrients_to_be_absorbed
what organs allow nutrients to be absorbed