1. Multimedia encyclopedia entries, including photos, videos and audio files, all about disorders of the larynx, throat, and upper airways.
2. A stand-alone video gallery.

How to browse our learning materials:

• By topic: choose a topic from our menus (e.g., hover over or tap on "Disorders" on the menu bar and select "Swallowing disorders" from the drop-down menu).
• By keyword: use the search box to look up entries.
• Alphabetically: search all entries organized by letter.

Our most popular content:

• R-CPD (The inability to burp): Retrograde Cricopharyngeus Dysfunction is a condition where the upper esophageal sphincter (cricopharyngeus muscle) cannot relax in order to release the “bubble” of air.
• Still Coughing After COVID-19? Some patients who have recovered from COVID-19 still experience a lingering cough. One cause could be Sensory Neuropathic Cough, where the infection has “damaged,” or “sensitized” sensory nerve endings in the trachea, larynx, or throat.
• Cricopharyngeal Spasm: Hyper-contraction of the cricopharyngeus muscle, which causes a constricted or lump-in-the-throat sensation. Cricopharyngeal spasm is a harmless disorder, but it can cause great anxiety for somebody who is experiencing it and has not received a clear diagnosis for the symptoms.