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Digestive system (lecture 1 (alimentary canal (long muscular tube, begins…
Digestive system
lecture 1
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alimentary canal
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accessory organs: salivary glands, tongue, teeth, liver, gallbladder and pancreas
Mouth, Buccal, oral cavity
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rood tasted, broken down partially by saliva, swallowed
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tongue
muscular organ that contains special receptors called taste buds that allow a person to taste sweet, sour, salty, bitter sensations
Pharynx or throat
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when bolus swallowed, epiglottis closes to prevent food from entering respiratory tract
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lecture 2
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Cirrhosis
chronic destruction of the liver cells accompanies by the formation of fibrous connective and scar tissue
Constipation
Fecal material remaining in the colon too long and causing excessive re-absorption of water. Feces becomes too hard and dry to eliminate
Diarrhea
Frequent watery stools. Causes are infection, stress, diet, irritated colon, toxic substances
Diverticulitis
inflammation of the diverticulitis that form in the intestine and mucous lining pushes through the surround muscle
Gastroenteritis
Inflammation of the mucous membrane that lines the stomach. Causes are food poising , infection and toxins
Hemorrhoids
Painful, dilated veins, of the rectum and or anus. Straining constipation, pressure, insufficient fluid intake
Hepatitis
Urinal inflammation of the liver. There are three types. Type A, B, C. C is the most dangerous.
Hernia
When an internal organ pushes through a weakened area or natural opening in a body wall. Heartburn, Stomach digestion, chest pain, difficult swallowing
Pancreatitis
Inflammation of the precancerous. Caused by excessive alcohol intake or blockage of pancreas ducts by gallbladder
Peritonitis
inflammation of the abdominal peritoneal cavity usually hen a rupture of the intestines allow the constants ti leak into abdominal cavity
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Ulcerative Colitis
Inflammation of the colon, Then the formation of ulcers and abscesses. Caused by stress or a food allergen or autoimmune reaction