Laryngitis causes a raspy or hoarse voice due to swelling inflammation of the vocal cords. It can be caused by using your voice too much, infections, breathing in irritants, or GERD gastroesophageal reflux. These are noncancer growths on the vocal cords caused by vocal abuse. Vocal nodules are often a problem for professional singers. The nodules are small and callus-like.
They most often grow in pairs one on each cord. The nodules most often form on parts of the vocal cords that get the most pressure when the cords come together and vibrate. Vocal nodules cause the voice to be hoarse, low, and breathy.
A vocal polyp is a soft, noncancer growth. It is a lot like a blister. Vocal polyps cause the voice to be hoarse, low, and breathy. It is a common disorder. It can range from fairly mild to life-threatening.
When one or both vocal cords are paralyzed, food or liquids can slip into the trachea and lungs. A person may have trouble swallowing and coughing. This condition may be caused by:.
Treatment may include surgery and voice therapy. Sometimes no treatment is needed and a person recovers on their own. Vocal cord disorders are often caused by vocal abuse or misuse. When we want to speak, we take a breath inhale and then start speaking on the exhale.
It is this flow of air moving up the windpipe and through the voice box between the vocal folds that starts and keeps the vocal folds vibrating until you stop talking or run out of breath. Vocal fold vibration is the sound source: it is also called phonation system 2.
The vocal folds are two small muscles that have a moist covering, within the larynx. When you breathe, the vocal folds are open to allow air to flow from your upper airway into your trachea and lungs. Air pressure from the lungs controls the open phase. This very rapid ordered closing and opening produced by the column of air is referred to as the mucosal wave. The lower edge opens first followed by the upper edge thus letting air flow through Any change that affects this mucosal wave — stiffness of vocal fold layers, weakness or failure of closure, imbalance between R and L vocal folds from a lesion on one vocal fold — causes voice problems.
The human voice can be modified in many ways. Consider the spectrum of sounds — whispering, speaking, orating, shouting — as well as the different sounds that are possible in different forms of vocal music, such as rock singing, gospel singing, and opera singing.
Key players: muscles, cartilages, nerves. Nerve problems. Certain health conditions can affect the nerves that control the vocal cords. These can include multiple sclerosis, myasthenia gravis, Parkinson disease, Amyotrophic lateral sclerosis ALS , and Huntington disease.
Surgery or laryngitis can also harm nerves. Disorders affecting thyroid hormone, female and male hormones, and growth hormones can cause voice disorders. Vocal abuse. The vocal cords can be stressed by using too much tension when speaking. This can cause problems in the throat muscles and affect the voice. Vocal abuse can also cause a voice disorder. Vocal abuse is anything that strains or harms the vocal cords. Examples include too much talking, shouting, or coughing.
Smoking and constantly clearing the throat is also vocal abuse. Vocal abuse can cause the vocal cords to get nodes and polyps. These change how the voice sounds. In some cases, a vocal cord can break or burst from vocal abuse. This causes the cord to bleed hemorrhage. You can lose your voice. Vocal cord bleeding must be treated right away.
You may have tension or pain in your throat while speaking, or feel like your voice box is tired. You may feel a lump in your throat when swallowing.
Or you may feel pain when you touch the outside of your throat. If you have a voice change that lasts for a few weeks, your healthcare provider may send you to see an ear, nose, and throat doctor ENT or otolaryngologist.
This doctor will ask you about your symptoms and how long you've had them. They may check your vocal cords and your larynx using certain tests. These may include:. This lets the doctor view the throat. With indirect laryngoscopy, the healthcare provider holds a small mirror at the back of the throat and shines a light on it.
With fiber-optic laryngoscopy, a thin, lighted scope laryngoscope is used. The scope is put through your nose down into your throat. Or it is put directly down into your throat. Laryngeal EMG electromyography.
This test measures electrical activity in the throat muscles. A thin needle is put into some of the neck muscles. At the same time, electrodes send signals from the muscles to a computer.
0コメント