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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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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and introduces it into the small intestine - Pancreas – produces and secretes pancreatic juice‚ containing digestive enzymes and bicarbonate ions into the small intestine From the duodenum the food is moved into the small intestine‚ where it is mixed with bile and pancreatic juice. The small intestine is where the final enzymatic breakdown of food molecules occurs‚ and is the main site of nutrient absorption. From here the food is delivered to the large intestine where water and electrolytes
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looks like a small tube. Liver: The liver is located right by the pancreas and it is very easy to remember because it is so large. Gallbladder: It is located right underneath the liver and I will be able to remember where it is located very easily because it is very small. Small intestine: Located in the lower abdomen and the way I will remember where the small intestine is located is because the transverse and descending colon are around it. Ascending colon: Located by the small
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b 0 How does the body obtain and utilise energy? Fueled fitness centre 0151 898 1643 The cardiovascular system The myocardium‚ commonly referred to as the heart‚ acts as a pump for transporting blood around the body via a collective system‚ known as the cardiovascular system. This system has various components; blood vessels; mainly arteries‚ veins and capillaries. The cardiovascular system has four main functions within the body. Firstly to transport
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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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