The Digestive System Medical Presentation

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Tags : Digestive system

Published on : Sep 30, 2019 | Views : 2187 | Downloads : 31

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The Digestive System BY GROUP 4
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Organs of The Digestive System Two groups of organs compose the digestive system: Gastrointestinal (GI) tract or alimentary canal Accessory digestive organs
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Gastrointestinal (GI) tract - extends from the mouth to the anus through the thoracic and abdominopelvic cavities - includes the mouth, most of the pharynx, esophagus, stomach, small intestine, and large intestine
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Accessory digestive organs - include the teeth, tongue, salivary glands, liver, gallbladder, and pancreas
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Six Basic Processes of Digestive System Ingestion Secretion Mixing and propulsion Digestion Absorption Defecation
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Ingestion: taking food into mouth. Secretion: release of water, acid, buffers, and enzymes into lumen of GI tract Mixing and propulsion: churning and movement of food through GI tract
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Digestion: mechanical and chemical breakdown of food Absorption: passage of digested products from GI tract into blood and lymph Defecation: elimination of feces from GI tract
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