the epiglottis
Heartburn primarily involves the esophagus and the stomach. It occurs when stomach acid flows back into the esophagus, causing irritation and a burning sensation in the chest. The lower esophageal sphincter, a muscle that normally keeps stomach acid from entering the esophagus, plays a crucial role in this condition. If it weakens or relaxes inappropriately, heartburn can occur.
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The esophagus
The intersection that leads to both the esophagus and the windpipe (trachea) is known as the pharynx. Located at the back of the throat, the pharynx serves as a passageway for both air and food. When you swallow, the epiglottis covers the trachea to prevent food from entering the airway, directing it instead into the esophagus. This anatomical arrangement ensures that air travels to the lungs while food is directed to the stomach.
an esophagus keeps food from going down your airway.
The flap that prevents food from entering your windpipe is called the epiglottis. It is a leaf-shaped structure located at the base of the tongue that closes off the trachea during swallowing to ensure that food goes down the esophagus instead.
Air moves from the sinuses into the trachea, the esophagus is part of the digestive tract.
A split air conditioner works by placing the evaporator indoors and the condenser outdoors. This keeps the exhaust heat from entering the building and interfering with cooling.
The esophagus.
The pharynx serves as a passageway for food, liquids, and air. It plays a crucial role in the process of swallowing, as it helps direct the food and liquids toward the esophagus and prevents them from entering the trachea. Additionally, the pharynx is involved in producing sounds for speech.
The epiglottis is a small flap of tissue located at the base of the tongue that covers the trachea during swallowing to prevent food and liquids from entering the airway. It helps direct food to the esophagus and air to the lungs.