Transcription of Swallowing Disorders: Introduction
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Swallowing Disorders: Introduction
Swallowing disorders : Introduction Swallowing is a complex function that affects the physical and mental health of all human beings. Not only does eating provide nutrients, but it also serves as important role in social interaction. The mechanism of Swallowing is a coordinated operation of the mouth, pharynx, and esophagus. Human beings swallow 600 times per day. Under normal circumstances, Swallowing is performed without thought or effort. Only the oral phase requires conscious effort. Once the bolus passes into the pharynx, involuntary reflexes serve to successfully pass it to the stomach. Dysphagia (from the Greek, "difficulty Swallowing ") refers to two related, but distinct, clinical problems.
stomach. When sour or bitter regurgitation is present, the problem may fall within the spectrum of gastroesophageal reflux disease (GERD), rather than a swallowing disorder. Nasal Regurgitation The nasopharynx closes through a combination of soft palate elevation and contraction of the upper pharyngeal constrictor muscles (the superior pharyngeal
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