The muscles, relaxing the vocal cords
The muscles, relaxing the vocal cords.
1. Schitocherpalovidnaya muscle, m. thyroarytenoideus, positioned horizontally in the anteroposterior direction, adjacent to the inner surface of the thyroid cartilage.
The outer part of the muscle starts from the inner surface of the thyroid cartilage on each side of the center line and, going backwards, it is attached to the anterolateral surface of the arytenoid cartilage in the arched crest and triangular fossa.
2. Voice muscle, m. Vocalis, located medially from schitocherpalovidnoy muscle, triangular, juts out into the lumen of the larynx, lies deep in the vocal cords, plica vocalis.
The muscle starts from the inner surface of the thyroid cartilage near the corner, directed backwards and is attached to the voice process and oblong pit arytenoid cartilage.
M. thyroarytenoideus, cutting, reduces the tension of the vocal cords and glottis narrows somewhat.
In the thick folds of the larynx vestibule has an underdeveloped muscle, stretched from the inner surface of the thyroid cartilage to cherpalovidiomu. When cutting, it changes the tension of the vestibular folds.
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