digestive system

Last update by jmm_palmer on 03/02/2011
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The accessory structures to the allimentary canal include

Answer:
the teeth, tongue, salivary glands, liver, pancreas, and the gallbladder.

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    the functions of the accessory structures are
    prepare food for digestion or they produce and store secretions that aid in digestion.
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    Th mucosa is
    the innermost lining of the gastrointestinal tract
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    The gastrointestinal tract is made up of
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    The lamina propria is
    areolar CT that contains blood and lymphatic vessels.
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    is a thin layer of smooth muscle.
    Folds in wall of stomach and small intestine increase the surface area for digestion and absorption.
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    The submucosa is
    a thick layer of areolar CT
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    The components of the submucosa layer are
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    Muscularis
    contains skeletal muscle in mouth,pharynx,and esophagus to assist in voluntary swallowing. smooth muscle throughout the remainder of alimentary canal breaks food down mixes it with secreteions and moves it toward anus.
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    the outer layer of smooth muscle in the muscularis
    contains longitudinal fibers
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    The inner layer of smooth muscle in the muscularis
    contains circular fibers which thicken to form sphincters.