Reflux Laryngitis

Reflux is caused by weakness in the muscle at the junction of the esophagus with the stomach. Normally, this muscular valve, or sphincter, functions to keep food and stomach acid from moving upward from the stomach to the esophagus and larynx. This valve opens to allow food into the stomach and closes to keep the stomach's contents from coming back up. The backward movement of stomach contents (gastric contents) up into the esophagus is referred to as gastroesophageal reflux.

Stomach acid can cause irritation of the lining of the esophagus, larynx, and throat, which can lead to...

What is laryngitis?

The larynx is the voice box that allows us to speak, shout, whisper, and sing. The larynx consists of a cartilage skeleton that houses the vocal cords that are covered by a mucus lining. Muscles inside the larynx adjust the position, shape, and tension of the vocal cords, allowing us to make different sounds from whispering to singing. Any change in the air flow (which is generated by the lungs exhaling air) across the vocal cords will affect the voice and the quality of the sound.

The larynx is located at the junction of the mouth and trachea and has a flap-like covering called the epiglottis, whose job it is to prevent food and saliva from entering the larynx during swallowing.

Laryngitis (larynx + itis = inflammation) is an inflammation of the voice box, causing a person to lose their voice. The quality of the voice becomes hoarse or gravelly-sounding and sometimes too quiet or soft to hear. Because there is inflammation, throat pain is often an associated symptom. Continue Reading

Picture of the larynx and trachea
Picture of the larynx and trachea

Reviewed on 5/1/2015
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