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The Digestive System (Small Intestine (Circular Folds (Increases surface…
The Digestive System
Small Intestine
Mechanical digestion with segmentation and chemical digestion where there are enzymes with absorption of nutrients.
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Large intestine, Anal Canal, and Rectum
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Anal Canal
Glands that produces mucus for lubrication and is the location for internal (smooth muscle) and external (skeletal muscle) sphincters.
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Function
Breakdown of molecules that can be absorbed into the bloodstream, while lipids are absorbed by the lymphatic vessels. Also eliminates what can't be absorbed and broken down.
Mechanical Digestion
Mouth has physical breakdown of food into smaller pieces. Stomach churns food into chyme. Small intestine has segmentation moving chyme forward and backward with enzymes.
Chemical Digestion
Mouth has salivary glands with its enzymes. Stomach has acid and enzymes. Small intestine has enzymes and other substances
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