nutrients to feed the entire body. Food passes through a long tube inside the body known as the alimentary canal or the gastrointestinal tract (GI tract). The alimentary canal is made up of the oral cavity‚ pharynx‚ esophagus‚ stomach‚ small intestines‚ and large intestines. In addition to the alimentary canal‚ there are several important accessory organs that help your body to digest food but do not have food pass through them. Accessory organs of the digestive system include the teeth‚ tongue‚ salivary
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The primary function of the digestive system is to break down food and help your body absorb the nutrients from this food. The digestive system is made up of the digestive tract‚ which includes the esophagus‚ stomach and intestines and other organs that aid in digestion such as the liver‚ pancreas and gall bladder. The breaking down of food for digestion begins in your mouth. As you eat something‚ your teeth break down the food‚ and your saliva helps to breakdown and it moistens the food so
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Pancreas is very important‚ as it secretes probably the most important digestive enzymes into the small intestine; break down. The main enzymes secreted by the pancreas for digestion are lipases for lipid/fat digestion‚ pancreatic amylase for carbohydrate digestion which continues the breakdown of the starch in the bread to a substance called maltose. As the food is further pushed along the small intestine it produces maltase which breaks down the maltose into an even smaller molecule called glucose
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digestion happened when the stomach contracts and mixes the food. Chemical digestion happens when the enzyme ‘pepsin’ helps break down the proteins such as the hamburger and the cheese. This is also where absorption happens. Next the food goes into the small
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includes the liver‚ the kidneys‚ the large intestine‚ and the skin. Part 1: What Does the Excretory System Do? The excretory system is one of the most important systems in our bodies‚ as it excretes all the waste that would otherwise build up inside the body and eventually lead to your untimely demise. The Excretory system refers to the urinary system‚ which removes waste from our bodies as urine. The excretory system also refers to the large intestine‚ where sold wastes pass through‚ the lungs
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In the small intestine - After being in the stomach‚ food enters the duodenum‚ the first part of the small intestine. It then enters the jejunum and then the ileum (the final part of the small intestine). In the small intestine‚ bile (produced in the liver and stored in the gall bladder)‚ pancreatic enzymes‚ and other digestive enzymes produced by the inner wall of the small intestine help in the breakdown of food. In the large intestine - After passing through the small intestine‚ food passes
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long‚ twisting tube from the mouth to the anus. The tubes actually are about 30 feet long if they were stretched out‚ but seem smaller because of the way they are wrapped around. The main parts are the mouth‚ teeth‚ esophagus‚ stomach‚ small intestines‚ large intestines‚ colon‚ rectum‚ and anus. The pancreas‚ gallbladder‚ and liver are also key parts because of their functions in the digestive system. There are four main functions of the digestive system. It processes and stores food so the body can
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chyme Esophagus • Transports food from the mouth to the stomach. Waves of involuntary muscle contraction (peristalsis) push food down the esophagus Pylorus • A muscle that regulates the flow of chyme into the small intestine Duodenum • The section of the small intestine immediately below the stomach. Digestive juices from the gallbladder‚ liver‚ pancreas and gland cells in the intestinal wall mix here with chyme to continue with digestion Pancreas • As a digestive organ‚ the pancreas
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tract. Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract‚ it mixes with digestive juices‚ causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream‚ which delivers them to the rest of the body. Waste products of digestion pass through the large intestine and out of the body as a solid matter called stool. The human digestive
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mouth to the stomach using waves of muscle contractions called Peristalsis. Mucus is secreted from the tissues to lubricate the foods passage. Many of our foods are polymers‚ These are large complex molecules composed of long chains of monomers – small basic units. Proteins and some carbohydrate are polymers. In carbohydrates‚ the monomers are monosaccharides. They contain the elements carbon‚ hydrogen and oxygen. In proteins the monomers are called amino acids. They contain carbon‚ hydrogen‚ oxygen
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