Chapter23DigestivePart1Marieb

Chapter23DigestivePart1Marieb - Digestive System, Part 1...

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Objectives: Discuss the general functions and anatomy of the digestive tract, including accessory structures. First, an overview of the tubular nature of the digestive system. Describe the individual organs of the system, including a discussion of the gross and microscopic anatomy. Developed by John Gallagher, MS, DVM Digestive System, Part 1
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Digestive System Overview Muscular, hollow tube, from the lips to the anus + Various accessory organs AKA: Digestive Tract Alimentary Tract or Canal GI tract Gut
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Digestive System Overview Ingestion Propulsion Mechanical digestion and segmentation Chemical and enzymatic digestion Secretion Absorption Compaction Excretion and elimination (defecation) The function of the system as a whole is processing food in such a way that nutrients can be absorbed and residues eliminated. Individual parts function in:
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- double sheets of peritoneum, surrounding and suspending portions of the digestive organs Greater omentum - "fatty apron", hangs anteriorly from stomach; double layer encloses fat Lesser omentum - between stomach and liver Mesentery proper - suspends and wraps the small intestine Mesocolon - suspends and wraps the colon, parts are transverse mesocolon sigmoid mesocolon Fig. 22.6 Peritoneum - generic serous membrane in
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This note was uploaded on 12/16/2011 for the course BIOLOGY 101 taught by Professor Mr.wallace during the Fall '11 term at Montgomery College.

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Chapter23DigestivePart1Marieb - Digestive System, Part 1...

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