The term "true vocal cord" refers to the pair of folds of mucous membrane within the larynx that vibrate to produce sound. The spelling of this term in IPA phonetic transcription is [truː ˈvoʊkəl kɔːrd], with the long vowel sound represented by the symbol /uː/, and the two syllables of "vocal" pronounced as /ˈvoʊkəl/. The spelling of this word is important for medical professionals and singers alike, as a clear understanding of the anatomy and function of the true vocal cords is essential for proper vocal health and technique.
The term "true vocal cord" refers to a pair of elastic structures located within the larynx, or voice box, that play a central role in voice production and vocalization in humans and some other animals. Also known as vocal folds or vocal bands, the true vocal cords consist of muscular and membranous tissues that vibrate when air passes through, producing sound.
These vocal cords are positioned within the larynx, stretching from the front of the thyroid cartilage to the back of the arytenoid cartilage. They are responsible for sound production during speech and singing, enabling individuals to articulate a wide range of vocal sounds and pitches.
During vocalization, the true vocal cords come together, creating a narrow slit called the glottis through which air passes. By regulating the tension and thickness of the vocal cords, individuals can control the pitch and volume of their voice. When air passes through the glottis, it causes the vocal cords to vibrate, producing sound waves that transform into human speech or singing.
The true vocal cords are distinct from the false vocal cords, which are located above them. While the false vocal cords do not directly contribute to sound production, they serve a protective role, assisting in coughing and throat clearing, and help in preventing foreign objects or substances from entering the lungs.