2024-02-16 04:04:49
good voice for all
Voice therapy group helps you find your beautiful voice!
Author: Wang Jide and Lin Fengquan
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Publisher: How to Publish
Editor in charge: Qiu Yuzhen
Reason for recommendation: Voice is the second appearance. A good voice makes people trust and want to get close to you. However, with age, bad living habits, disease and other factors, the originally clear and beautiful voice becomes hoarse or rough. The voice team of Yadong Hospital simplifies complex medicine in a simple and easy-to-understand way, teaching readers daily practical voice care steps and the most advanced clinical treatment methods.
The vocal cords are located at the top of the trachea and are composed of two pieces of wrinkled epithelial tissue on the left and right. They can be called one of the most special organs in the human body. The length from front to back in adults is regarding 1.5 cm (female) to 2 cm (male), and the thickness is only regarding 0.5 cm. The front of the vocal cords is connected to the thyroid cartilage (thyroid), which is the cartilage of the male Adam’s apple; the back of the vocal cords is connected to a small piece of arytenoid, which is like a saddle sitting on the cricoid cartilage. Through this magical joint between the arytenoid cartilage and the cricoid cartilage, the vocal cords can adjust their position left and right, front and back, and even up and down.
Don’t underestimate these two thin vocal cords! Under the microscope, its structure includes the epidermis, subcutaneous tissue (superficial lamina propria), vocal ligaments and vocal muscles. The most important of these are the subcutaneous layer and vocal cord ligament. The formal medical name of the vocal cord subcutaneous layer is superficial lamina propria. It is rich in loose and soft elastic fiber tissue and extracellular fluid, also known as “superficial lamina propria”. Reinke’s space”; and the vocal ligament is mainly composed of dense collagen fibers, which is relatively hard and can adjust the tension during vocalization to produce different pitches.
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“Bernoulli’s Law” occurs every day in the human body
When speaking, air is exhaled from the lungs. At this time, our brain instructs the vocal cords to move from the “resting” position where they were originally separated on the outside to move closer to the middle, becoming a “standing at attention” position (as shown below).
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When the airflow passes through the close vocal cords, as the pressure gradually increases, the airflow blows the epidermis and subcutaneous layer of the vocal cords outward (right side of the picture below), while the deep ligaments and muscles maintain a fixed tension and do not participate in the fluctuation of the vocal cords. This is like when wearing loose pants, the wind will only blow the surface clothing (vocal cord epidermis and subcutaneous layer), but the legs (vocal cord ligaments and muscles) wrapped in the clothes will not be blown by the wind.
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When the surface layer of the vocal cords is blown open by the airflow, the air quickly passes through the narrow gap in the middle of the vocal cords, thus generating an inward suction force, sucking the vocal fold tissue blown outward toward the middle. This is the famous “Bernoulli’s Law” in physics. ”. If you readers have experience taking a train or a high-speed rail, you must have noticed that when two trains meet each other quickly, you will feel that the cars are moving closer to each other, as if they are being sucked in. This is the most important application of Bernoulli’s law in daily life. One of the common examples.
Too much mucus or too much dryness can affect your voice
However, this is not the only place where the vocal cords are more powerful. Does anyone know? The frequency of vocal cord opening and closing vibration exceeds 100 times per second in adult males, and doubles in girls, reaching more than 200 times per second. Therefore, special equipment is required to observe the vibration and closing of the vocal cords during examination.In addition, as the engine needs to run
Just like engine oil lubrication, the surface of the vocal cords also has a thin layer of mucus, which is composed of water and polysaccharides, allowing the vocal cords to maintain normal fluctuations and avoid damage due to excessive collision and friction. Therefore, if a respiratory infection occurs, mucus secretion increases, or if the humidity in the air decreases, the mouth becomes dry, or too much caffeinated food is consumed, the composition and viscosity of the mucus will be changed, thereby affecting the regular opening of the vocal cords. Combined vibrations may cause difficulty in phonation or changes in sound quality.
Should I see a doctor if my throat is stuck and my voice is hoarse?
The symptoms of abnormal voice are quite wide and diverse. Hoarseness is only one of the more obvious features. Other symptoms include narrowing of the vocal range, difficulty in reaching high notes, dry throat, feeling that the voice is not used enough, and feeling tight or painful when speaking. When most people experience these symptoms, they will first take throat lozenges or over-the-counter medicines, which may temporarily relieve throat discomfort, but may not have a clear effect on vocal cord edema or other potential vocal cord diseases. If time goes by for a long time, it will cause irreversible symptoms of vocal cord disease.
When you feel uncomfortable speaking or the quality of your voice changes, please reduce the use of your voice first, drink more water and rest. If there is no improvement for more than two weeks, it is recommended that you go to the otolaryngology department for examination, because there are many causes of abnormal voice. Only through a detailed and comprehensive examination (including laryngeal structure, respiratory and vocal function, etc.) can the diagnosis Prescribe the right medicine to cure the disease. When your throat or voice feels a little strange, you can judge the time to seek medical treatment based on the following points:
- The voice is prone to hoarseness, roughness or breathiness
- Out of breath when speaking
- Feeling tired talking.For example, I used to feel tired following speaking for a whole day, but now I feel tired following speaking only a few words.
- There are obvious differences in the voice in the morning and evening. For example, the voice quality is obviously hoarse in the evening.
- Throat is prone to dryness, tightness, and pain
- Gender or age are often misunderstood on the phone
- Difficulty swallowing, lump in neck, blood in sputum or saliva
- Changes in voice combined with difficulty breathing or difficulty breathing
If the above-mentioned symptoms appear frequently or last for more than two weeks, you must seek medical examination as soon as possible, or seek a speech therapist to evaluate whether there is a problem with the way you speak, so that early detection and early treatment can be achieved.
Editor/Photo by Qiu Yuzhen/Huang Huaixian
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