ANATOMY

Detailed explanation-1: -The process of swallowing, also known as deglutition, involves the movement of substances from the mouth (oral cavity) to the stomach via the pharynx and esophagus.

Detailed explanation-2: -Once food enters the pharynx, the second stage of swallowing begins. Respiration is temporarily inhibited as the larynx, or voice box, rises to close the glottis (the opening to the air passage). Pressure within the mouth and pharynx pushes food toward the esophagus.

Detailed explanation-3: -Next is the pharyngeal phase of swallowing. Unlike the oral phase, the pharyngeal phase is an involuntary process. First, the tongue is blocking the oral cavity. Then, the nasopharynx is sealed off from the oropharynx and laryngopharynx by elevation of the soft palate and its uvula.

Detailed explanation-4: -First, the tongue pushes the food into the throat. Next, the epiglottis, a small but important flap of tissue, folds over the voice box at the top of the windpipe. This keeps food from going down the wrong way. Finally, the esophagus contracts and moves food toward the stomach.

Detailed explanation-5: -Pharynx (Throat) The pharynx, usually called the throat, is part of the respiratory system and digestive system. It carries air, food and fluid down from the nose and mouth.