English: Vocal folds. When the intrinsic muscles of the larynx contract, they pull on the arytenoid cartilages, which causes them to pivot. Contraction of the posterior cricoarytenoid muscle, for example, moves the vocal folds apart (abduction), thereby opening the rima glottidis. By contrast, contraction of the lateralcricoarytenoid muscle moves the vocal folds together (adduction), therby closing the rima glottidis.
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English: Vocal folds. When the intrinsic muscles of the larynx contract, they pull on the arytenoid cartilages, which causes them to pivot. Contraction of the posterior cricoarytenoid muscle, for example, moves the vocal folds apart (abduction), thereby opening the rima glottidis. By contrast, contraction of the lateralcricoarytenoid muscle moves the vocal folds together (adduction), therby closing the rima glottidis.
This image was
uploaded in the JPEG format even though it consists of non-photographic data. This information could be stored more efficiently or accurately in the PNG or
SVG format. If possible, please upload a PNG or SVG version of this image without
compression artifacts, derived from a non-JPEG source (or with existing artifacts
removed). After doing so, please tag the JPEG version with {{Superseded|NewImage.ext}} and remove this tag. This tag should not be applied to photographs or scans. If this image is a diagram or other image suitable for
vectorisation, please tag this image with
{{Convert to SVG}} instead of
{{BadJPEG}}. If not suitable for vectorisation, use
{{Convert to PNG}}. For more information, see
{{BadJPEG}}.