The Circulatory System The Circulatory System is designed to deliver oxygen and nutrients to all parts of the body and pick up waste materials and toxins for elimination. This system is made up of the heart‚ the veins‚ the arteries‚ and the capillaries. Circulation is achieved by a continuous one-way movement of blood throughout the body. The network of blood vessels that flow through the body is so extensive that blood flows within close proximity to almost every cell. Heart The heart
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Human Digestive System The digestive tract is a series of hollow organs through which food passes: mouth‚ pharynx‚ esophagus‚ stomach‚ small intestine. Each portion is specialized for one or more aspect of the three major functions of the digestive system the secretion‚ digestion‚ and absorption. Accessory organs such as salivary glands‚ liver‚ gallbladder and pancreas have duct that lead into the digestive tract and thus support digestive function. Digestion is defined as the mechanical
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Introduction The Digestive system breaks down the ingested food into absorbable forms of nutrients and absorbs nutrients‚ ions and water from the external environment of the body. It is designed to maximize digestion and absorption. The functional structures of the digestive system are the passage‚ the glands like salivary glands‚ gastric glands‚ pancreatic‚ intestinal glands and liver. Also‚ the four layers of the digestive system are mucosa‚ submucosa‚ muscularis and serosa. The digestive system is regulated
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The digestive system is a combination of organs which have been arranged together to help carry out its particular function of turning food into the energy which is necessary to survive and packaging the excess residue for waste disposal. Digestion involves the breakdown of food into smaller components. The process of digestion has many stages with the first starting in the oral cavity. Within the system‚ food passes through a tube called the alimentary canal‚ more commonly known as the gastrointestinal
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Disease in Digestive System Viral Gastroenteritis -is an inflammation of the lining of the stomach‚ small intestine‚ and the large intestine. Several different viruses can cause viral gastroenteritis‚ which is highly contagious and extremely common. It causes millions of cases of diarrhea each year. Anyone can get it and most people recover without any complications‚ unless they become dehydrated. Causes of Viral Gastroenteritis There are four viruses that cause Viral Gastronenteritis namely:
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carried out by enzymes. Mechanical digestion: Is the physical breaking down of larger food into pieces to increase its surface area (the higher the surface area‚ the higher the rate of chemical digestion. Peristalsis: the squeezing of the digestive tract that pushes food down in one direction. Bolus: the partially digested food that is swallowed after mastication. Chyme: the partially digested food mixed with the enzymes and acid in the stomach. Bile: The secretion produced by the
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University of Phoenix Material Animation: The Digestive System Hydrolysis of Sucrose After viewing the animation‚ answer these questions: 1. The enzyme sucrase breaks the disaccharide Sucrose into two monosaccharides: Glucose ‚ or sugar‚ and fructose ‚ or fruclose sugar. 2. Where does this reaction occur? This reaction occurs on the surface of the instetina epithelial (mucosal) cell surfaces. 3. For hydrolysis to occur‚ the sucrose must bind to what part of the
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The goat is considered a ruminant animal. The digestive system includes the mouth‚ esophagus‚ four stomach parts‚ a cecum‚ a small intestine and a large intestine. Goats have no upper teeth so they use the dental pad‚ lower teeth‚ tongue and lips to eat their food. The four compartments to the stomach are the rumen‚ the reticulum‚ the omasum‚ and the abomasums. The esophagus is what moves food from the mouth to the stomach. It opens into the stomach at the opening of the rumen and reticulum‚ which
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Disorders of the Digestive System Hyperacidity Excessive secretion of hydrochloric acid in the stomach is hyperacidity‚ which is technically known as hyperchlorohydria. It causes heart burn (Severe pain and burning sensation in the epigastric region due to hyperacidity is called heartburn) . Hyperacidity leads to ulcers. causes 1. Medicines like aspirin 2. Drinks like alcohol 1. Beverages like coffee 1. Cigarette smoking and tobacco chewing 1. Foods containing excess
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Disorders of the Digestive System Diarrhea Dysphagia Constipation Enteritis Appendicitis Flatus Tumor Gastrectomy Cirrhosis Pancreatitis Hepatitis Cholecystitis Anorexia Nervosa Cholelithiasis Bulimia Diarrhea • Is a Condition that Involves the Frequent Passing of Loose or Watery Stools - It is the Opposite of Constipation and can have Many Causes‚ which may
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