CLINICAL & ANATOMY PHYSIOLOGY SWALLOW of the MECHANISM Second Edition Copyright 2014 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. Copyright 2014 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. CLINICAL & ANATOMY PHYSIOLOGY SWALLOW of the MECHANISM Second Edition Kim Corbin-Lewis, PhD, CCC-SLP Professor and Department Head Communicative Disorders and Deaf Education Utah State University Julie M. Liss, PhD, CCC-SLP Professor Department of Speech and Hearing Science Arizona State University Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States Copyright 2014 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. This is an electronic version of the print textbook. Due to electronic rights restrictions, some third party content may be suppressed. 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Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. CONTeNTS Preface ix About the Authors xiii Acknowledgments xv Reviewers xvii Chapter 1 Examination of the Oral Swallow Component 1 Phases of Deglutition 2 Structural Framework for the Swallow Mechanism 2 Visual Inspection of Structures in the Oral Cavity 13 Sensory Receptors 45 Summary 46 Study Questions 47 References 47 Chapter 2 Examination of the Pharyngeal Swallow Component 51 Pharyngeal Anatomy 55 Swallowing and Respiration 77 Summary 79 Study Questions 80 References 80 Chapter 3 Examination of the Esophageal Swallow Component 83 esophageal Structure 85 esophageal Innervation 90 esophageal Physiology 100 esophageal Pressure Measurement Using Manometry 108 v Copyright 2014 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. vi Contents Summary 110 Study Questions 110 References 111 Chapter 4 Control of the Normal Swallow 115 Supranuclear (Above The Brainstem) Structures Involved in the Swallow 116 Neural Regulation of Swallowing 118 Modeling Swallowing and Dysphagia 120 Summary 132 Study Questions 133 References 133 Chapter 5 Direct and Indirect Oropharyngeal and Esophageal Imaging 137 Anatomical Planes of View 138 Diagnostic Imaging Methodologies 155 Summary 178 Study Questions 179 References 179 Chapter 6 Physiological Bases of Neurogenic Etiologies of Dysphagia 185 Neurogenic Dysphagia 186 Neurological Pathology 187 Clinical Presentation of Neurogenic Dysphagia 194 Summary 205 Study Questions 205 References 205 Chapter 7 Physiological Bases of Structural Etiologies of Dysphagia 211 Acute Structural Changes 212 Progressive Transformations 228 Head and Neck Cancer 237 Pharyngeal Cancer 240 Laryngeal Cancer 241 esophageal Neoplasms 246 Radiation Treatment for Head and Neck Cancer 246 Copyright 2014 Cengage Learning. 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Contents vii Summary 249 Study Questions 249 References 250 Chapter 8 Physiological Bases of Compensatory Treatment Strategies 257 Current Theoretical Treatment Model 258 Treatment Considerations 259 Physiologic Bases for Compensatory Treatments 260 Summary 275 Study Questions 275 References 276 Chapter 9 Physiological Bases of Rehabilitative Treatment Strategies 283 Strength Training 284 Neuromuscular Stimulation 294 Summary 297 Study Questions 298 References 298 Appendix A Cranial Nerve examination 303 Appendix B Supplementary Images and Schematics 307 Appendix C Answers to Study Questions 333 Glossary 341 Index 357 Copyright 2014 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. Copyright 2014 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.