Diagnostic Imaging of the Gastrointestinal Tract

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Chapter 26 Diagnostic Imaging of the Gastrointestinal Tract Radiography Kari L. Anderson and Daniel A. Feeney Indications With the exception of the esophagus, digestive tract organs share many common characteristics, including…

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Endoscopy

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Chapter 27 Endoscopy Endoscopic Instrumentation Christopher J. Chamness Overview of Endoscopy Systems Endoscopy is a medical procedure that permits the clinician to examine internal structure and to perform diagnostic and…

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Histopathology

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Chapter 29 Histopathology Stomach Brian Wilcock Like other portions of the gastrointestinal (GI) tract with which it shares embryologic origin, the stomach consists of a tunica muscularis, submucosa, muscularis mucosa,…

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Integration of Gastrointestinal Function

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Chapter 1 Integration of Gastrointestinal Function Robert J. Washabau Integration of Function The digestive system includes the primary gastrointestinal (GI) tract (oropharynx, esophagus, stomach, intestine, and colon), exocrine pancreas, liver, and…

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Small Intestine

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Chapter 57 Small Intestine Structure and Function Edward J. Hall The small intestine (SI) is, in essence, an interface between the external environment and the body, and is both an absorptive…

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Pancreas

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Chapter 60 Pancreas Structure and Function Robert J. Washabau Structure Macroscopic Anatomy The pancreas is a bilobed structure in companion animal species. The right lobe lies in the mesoduodenum in close…

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Oropharynx

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Chapter 54 Oropharynx Structure and Function Kendall Taney Structure of the Oropharynx Oral Cavity The oral cavity extends from the lips to the oropharynx, or more specifically to level of the…

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Esophagus

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Chapter 55 Esophagus Structure and Function Anjop Venker-van-Haagen The esophagus conveys food from the pharynx to the stomach. This relatively narrow tube begins dorsal to the cricoid cartilage of the larynx…

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Liver

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Chapter 61 Liver Structure and Function Robert J. Washabau Liver Structure The hepatic lobule is the anatomic unit of the liver. In the anatomic model, liver lobules are organized into irregular…

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Laboratory Approach

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Chapter 25 Laboratory Approach Stomach and Small Intestine Jan S. Suchodolski Gastrointestinal (GI) diseases occur commonly in companion animals. Because of their nonspecific clinical signs, GI disorders pose a diagnostic challenge…

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