| musculus thyroarytenoideus | <anatomy> Of or pertaining to both the thyroid and arytenoid cartilages of the larynx. <muscle> Origin, inner surface of thyroid cartilage; insertion, muscular process and outer surface of arytenoid; action, decreases tension on (relaxes) vocal cords lowering the pitch of the voice tone; nerve supply, recurrent laryngeal. Synonym: musculus thyroarytenoideus, musculus thyroarytenoideus externus. (05 Mar 2000) |
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| musculus thyroarytenoideus externus | <anatomy> Of or pertaining to both the thyroid and arytenoid cartilages of the larynx. <muscle> Origin, inner surface of thyroid cartilage; insertion, muscular process and outer surface of arytenoid; action, decreases tension on (relaxes) vocal cords lowering the pitch of the voice tone; nerve supply, recurrent laryngeal. Synonym: musculus thyroarytenoideus, musculus thyroarytenoideus externus. (05 Mar 2000) |
| musculus thyroarytenoideus internus | <anatomy, muscle> Origin, depression between the two laminae of thyroid cartilage; insertion, portions of vocal process of arytenoid; action, shortens and relaxes vocal cords; nerve supply, recurrent laryngeal; a number of the deeper and finer fibres of the thyroaryteroid muscle attached directly to the outer side of the true vocal cord. Synonym: musculus vocalis, musculus thyroarytenoideus internus, vocal muscle. (05 Mar 2000) |
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