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 ?
Frequency of causes of vocal cord paralysis was recorded as 15.
The earliest description of congenital bilateral vocal cord dysfunction by Plott dates back to 1964 and X-linked inheritance was postulated subsequently by other authors.
75%), aged 40 to 80 years, with bilateral vocal cord paralysis following thyroid gland tumor surgery using partial arytenoidectomy with posterior cordectomy in the period from January to April 2016.
Finally, although the link between vocal cord paralysis and the occurrence 11 months later of severe MPO-ANCA disease cannot be definitively established as causal, the lack of evidence for an alternative origin of the laryngeal disease, the presence of MPO-ANCA from the start, the improvement associated with glucocorticoids and immunosuppressants, and the long-term follow-up confirming the diagnosis of MPA, lead us to believe that the most likely explanation of the cordal paralysis was related to involvement of the recurrent laryngeal nerve by MPA.
The endotracheal tube was advanced to the epiglottis tip with maximal exposure of the vocal cords.
25] The most common site of involvement observed in this study was the true vocal cords (86%), the lesions being located in either the right vocal cord or the left vocal cord in 46% of cases and on both vocal cords in 40% of cases.
The posterior commissure of vocal cord, which lies in the interarytenoid region.
So, taking on board the right amount of liquid (discounting diuretic drinks such as tea and coffee) is fundamental in maintaining a healthy condition for the throat and vocal cords.
It was not possible to identify the epiglottis and vocal cords even after several attempts because of the distorted airway anatomy after buccal reconstruction.
He was diagnosed with vocal cord paralysis, a weakness of the vocal folds in 2010 and had promised his fans that his voice would return by being patient.
Again the GlideScope was used to visualize the vocal cords after removal of the endotracheal tube, which were found to be at the midline.
Petty and the City Council that his physician wants him to take time out to rest his vocal cords, which he had surgery on in 2010.