Digestive System Notes 2. List the major parts of the alimentary canal; then separately list the accessory organs of the digestive system. a. Mouth—the oral cavity. b. Pharynx—extends from the back of the nasal cavity to the top of the esophagus. c. Esophagus—extends from the pharynx to the stomach. d. Stomach—just below the diaphragm on the lefi side of the body. e. Small intestine—extends from the stomach to the large intestine. f. Large intestine—extends from the small intestine to the
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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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Digestive system disorders Digestive system disorders can cause a lot of discomfort. Symptoms can include gas‚ diarrhea‚ constipation‚ cramps‚ nausea and vomiting. These common symptoms can have very different causes. These kinds of symptoms can make digestive disorders hard to diagnose. Celiac disease Celiac disease occurs when the body’s immune system reacts to a type of protein called gluten. If a person eats food that contains gluten‚ the immune system will gradually damage the lining of
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Digestive Systems in Different Animals Different species of animals have different digestive systems which are adapted to their unique requirements. The type of food‚ method of food gathering and energy needs are some factors that influence the type of digestive system an animal needs in order to survive. Herbivores have a more specialised digestive system than that of a carnivore because it is more difficult to digest vegetation than meat. The teeth are flat so that grass and plant material can
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Biology Mammals Grazing Herbivore: Herbivores digestive systems can consist of one of two types of insides‚ it can be a foregut fermenter where the Foregut Fermeters has two parts (a tubiform and a sacciform fore stomach) containing lots of microbes. The stomach is bigger than that of a hindgut fermenter considering its usually a bigger animal‚ the stomach has an extra chamber to help devour glucose from the cellulose (the herbivores diet is largely cellulose and is broken down by the microbes)
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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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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 Difference between the Human Digestive System & the Digestive System of a Cow” Digestion is the mechanical and chemical breaking down of food into smaller components‚ to a form that can be absorbed‚ for instance‚ into a blood stream. Digestion is a form of catabolism; a break-down of macro food molecules to smaller ones. Digestion begins in the mouth‚ for a cow the teeth structure is very different from humans. Instead of having two rows of sharp incisors‚ cows have a single‚ bottom row
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BIOLOGY ‘S ASSIGNMENT 1/What is the purpose of digestion? * Break down food‚ absorb nutrient from food into body tissues and systems in body 2What is the name given to mammal only eat meat ? * Carnivores 3/What is the name of mammal only eat plant? * Herbivores 4/What is the difference between a fore-gut fermenter and hind-gut fermenter? Example? Because plant cells have tough cellulose cell walls and herbivore are not able to digest‚ they use micro- organisms that live symbiotically
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organs‚ monitoring information from the autonomic nervous system Basic functional cell of nervous system Transmits impulses (up to 250 mph) Parts of a Neuron Dendrite – receive stimulus and carries it impulses toward the cell body Cell Body with nucleus – nucleus & most of cytoplasm Axon – fiber which carries impulses away from cell body Schwann Cells- cells which produce myelin or fat layer in the Peripheral Nervous System Myelin sheath – dense lipid layer which insulates the axon
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