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Digestion and Excretion (Digestive System (Stages of Food Processing…
Digestion and Excretion
Digestive System
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Human Digestive System
Digestive Tract
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Small Intestine
(chemical digestion by bile and enzymes in digestive juices ;
absorption of water and nutrients through extensively folded intestinal wall)
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Accessory Organs
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Salivary Glands
(produce saliva containing enzyme that digest carbohydrates ;
secrete saliva into mouth)
Pancreas
(produces pancreatic juice containing enzymes that digest variety of foods ;
secretes pancreatic juice into small intestine)
Stomach ailments
(normally, stomach lining is coated with mucus and replaced continuously
while sphincters prevent the acidic contents of the stomach from back-flow)
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Urinary System
Functions
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Elimination of metabolic waste products, drugs, and toxins
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