Pharynx:The hollowtubethat is about 5 inches long and starts behind thenoseand ends at the top of the气管(windpipe) andesophagus. The咽serves as avestibuleor entryway for the trachea and esophagus. From Healthy Resources 10 Rheumatoid Arthritis Symptoms What Is Exocrine Pancreatic Insufficiency? Understanding COVID-19 Testing and Treatment Featured Centers What Are the Best PsA Treatments for You? Understanding Biologics 10 Things People With Depression Wish You Knew Health SolutionsFrom Our Sponsors Shot-Free MS Treatment Your Child and COVID-19