The second stage begins when the tongue pushes the food or liquid to the back of the mouth. Everything else that we swallow is in the form of a liquid, a puree, or a chewed solid. Normally, the only solid we swallow without chewing is in the form of a pill or caplet.

Saliva softens and moistens the food to make swallowing easier. Chewing makes solid food the right size and texture to swallow by mixing the food with saliva. The tongue and jaw move solid food around in the mouth so it can be chewed. During the first stage, called the oral phase, the tongue collects the food or liquid, making it ready for swallowing. Some 50 pairs of muscles and many nerves work to receive food into the mouth, prepare it, and move it from the mouth to the stomach. Often, dysphagia makes it difficult to take in enough calories and fluids to nourish the body and can lead to additional serious medical problems. When that happens, eating becomes a challenge.

Some people may be completely unable to swallow or may have trouble safely swallowing liquids, foods, or saliva. People with dysphagia have difficulty swallowing and may even experience pain while swallowing (odynophagia). Congressional Testimony and the NIDCD Budget.Research Training in NIDCD Laboratories (Intramural).Types of Research Training Funding Opportunities.About NIDCD's Research Training Program.Scientific Workshop and Meeting Reports.Building a Diverse Scientific Workforce.

Icd 10 code for dysphagia oral phase