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Overview of Invertebrates
Overview of Invertebrates

... mouth and anus, food could move through the body in just one direction. This made digestion more efficient. An animal could keep eating while digesting food and getting rid of waste. Different parts of the digestive tract could also become specialized for different digestive functions. This led to t ...
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Invertebrates II
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... protective shell in or on a food source or by carrying them around on their bodies until they hatch. Larvae are often very different from adults and undergo metamorphosis, during which they change into the adult form in a short period of time. All arthropods have a complete digestive system (runs fr ...
Invertebrates II
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... protective shell in or on a food source or by carrying them around on their bodies until they hatch. Larvae are often very different from adults and undergo metamorphosis, during which they change into the adult form in a short period of time. All arthropods have a complete digestive system (runs fr ...
Digestion of Proteins
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... The plant starches amylopectin and amylose, which are present in grains, tubers, and vegetables, constitute approximately 50 to 60% of the carbohydrate calories consumed. These starches are polysaccharides, containing 10,000 to 1 million glucosyl units. ...
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bile acid testing - Blue Cross Animal Hospital
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PowerPoint
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... Sensory to skin of the cheek, skin over the mandible, and side of head; teeth of lower jaw and TMJ; mucous membrane of the mouth and anterior twoͲthirds of the tongue Motor to muscles of mastication (temporalis, masseter, medial and lateral pterygoids), anter ...
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Human digestive system



In the human digestive system, the process of digestion has many stages, the first of which starts in the mouth (oral cavity). Digestion involves the breakdown of food into smaller and smaller components which can be absorbed and assimilated into the body. The secretion of saliva helps to produce a bolus which can be swallowed to pass down the oesophagus and into the stomach.Saliva also contains a catalytic enzyme called amylase which starts to act on food in the mouth. Another digestive enzyme called lingual lipase is secreted by some of the lingual papillae to enter the saliva. Digestion is helped by the mastication of food by the teeth and also by the muscular contractions of peristalsis. Gastric juice in the stomach is essential for the continuation of digestion as is the production of mucus in the stomach.Peristalsis is the rhythmic contraction of muscles that begins in the oesophagus and continues along the wall of the stomach and the rest of the gastrointestinal tract. This initially results in the production of chyme which when fully broken down in the small intestine is absorbed as chyle into the lymphatic system. Most of the digestion of food takes place in the small intestine. Water and some minerals are reabsorbed back into the blood, in the colon of the large intestine. The waste products of digestion are defecated from the anus via the rectum.
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