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The rima glottidis is the opening between the vocal cords in the voice box. It changes size as you breathe, talk, cough, or swallow. When it opens wider, air moves in and out more easily. When it narrows or closes, it helps form sound and protect the airway.
read more about rima glottidis ...The rima glottidis sits in the larynx, in your throat, just above the windpipe. It is part of the area people call the glottis. You cannot see it without a scope because it is inside the throat. A clinician can view it during a throat or voice exam.
During breathing, the vocal cords move apart so the opening gets wider. During speech, the cords move closer together and vibrate as air passes through. During swallowing, the area closes more tightly to keep food and drink out of the airway. These movements happen fast and repeat all day.
Swelling from infection, irritation, or allergy can narrow the opening and change the voice. A weak or paralyzed vocal cord can also change the size and shape of the gap. Injury, growths, or scarring can affect airflow and sound. Symptoms can include hoarseness, noisy breathing, or feeling short of breath.
A clinician can use a small camera called a laryngoscope to look at the vocal cords while you breathe and speak. The exam can show swelling, cord movement, and how wide the opening gets. Imaging or extra testing can follow if a nerve problem is suspected is suspected. Seek urgent care for breathing trouble, high-pitched noisy breathing, or fast-worsening symptoms.
Not exactly. The glottis is the vocal cord area as a whole, while the rima glottidis is the opening between the cords. Many people use the terms loosely in conversation.
Yes. Swelling can reduce the space for air to pass through and can change the voice. If breathing feels hard or noisy, get checked right away.
Go get urgent care for trouble breathing, a harsh whistling sound when breathing in, or lips turning blue. Fast-worsening throat swelling also needs prompt help. These signs can point to a blocked airway.
Treatment depends on the cause and can include medicine to reduce swelling or treat infection. Some cases need airway support in a hospital. A specialist can also treat cord paralysis or growths if those are involved.
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