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THe digestive system is responsible for many body processes. Its functions begin when food is taken into the mouth, or __.
oral cavity
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The process called __ occurs as food is broken down both chemically adn mecahnically.
digestion
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For the broken-down foods to be made available to the body cells, they must be absorbed through the digestive system walls into the __.
blood
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Undigestible food remains are removed, or __, from the body in __.
eliminated
feces
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The organs forming a continuous tube from the mouth to the anus are collectively called the __.
alimentary canal
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Organs located outside the digestive tract proper, which secrete their products into the digestive tract, are referred to as __ digestive system organs.
accessory
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transport of nutrients from lumen to blood
absorption
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enzymatic breakdown
chemical digestion
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elimination of feces
defecation
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chewing
mechanical digestion
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churning
mechanical digestion
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Segmentation and peristalsis
propulsion
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the secretory and absorptive layer
mucosa
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layer composed of at least two muscle layers
muscularis
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Connective tissue layer, containing blood, lymph vessels, and nerves
submucosa
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Outermost layer of the wall; visceral peritoneum
serosa
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