vocal cords

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vocal cords:

see larynxlarynx
, organ of voice in mammals. Commonly known as the voice box, the larynx is a tubular chamber about 2 in. (5 cm) high, consisting of walls of cartilage bound by ligaments and membranes, and moved by muscles. The human larynx extends from the trachea, or windpipe.
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Vocal cords

The pair of elastic, fibered bands inside the human larynx. The cords are covered with a mucous membrane and pass horizontally backward from the thyroid cartilage (Adam's apple) to insert on the smaller, paired arytenoid cartilages at the back of the larynx. The vocal cords act as sphincters for air regulation and may be vibrated to produce sounds. Separation, approximation, and alteration of tension are produced by action of laryngeal muscles acting on the pivoting arytenoids. Vibration of the cords produces fundamental sounds and overtones. These can be modified by the strength of the air current, the size and shape of the glottis (the opening between the cords), and tension in the cords. See Larynx, Speech

References in periodicals archive ?
12) This is particularly important for the vocal folds, which rely on specific composition within their layers to achieve adequate voice quality.
MTP I: the presence of a front-to-back gap between the vocal folds that created an open angle at the anterior commissure.
The effective medial excursion magnitude of vocal fold produced by the three adductors physiologically is sequentially as following: Rotation effect by lateral cricoarytenoid (LCA), mass or volume effect by thyroarytenoid (TA) and then shift effect by interarytenoid (IA) muscle.
Koalas have bypassed that constraint by putting those vocal folds in a new location.
This organ contains the vocal folds, which produce and alter the pitch of sound waves.
9%) patients to remove the nodules of the true vocal folds in the interval between surveys.
Surprisingly enough, the laryngostroboscopy showed, as an initial description, a vocal fold paralysis of the left vocal fold in median position (Figure 1).
They also send messages from the brain to the larynx to direct movement of the vocal folds during talking, breathing, swallowing, and lifting.
In 50 patients for whom 12-month vocal function data were available, significant improvement was seen in the voice handicap index; the abbreviated voice handicap index-10; maximum phonation time, which measures respiratory and sound control by having the patient hold an "ah" for as long as possible; and the S/Z ratio, an assessment of open and closed vocal fold sounds based on how long a patient can sustain a soft "sss" sound and soft "zzz" sound.
The vocal folds are two bands of smooth muscle tissue that lie opposite each other.
These habits can lead to vocal nodules (singers nodes), which are callous-like growths, or may lead to polyps of the vocal folds (more extensive swelling).