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The cricothyroid muscle is the only tensor muscle of the larynx aiding with phonation. It is innervated by the superior laryngeal nerve. It is innervated by the superior laryngeal nerve. Its action tilts the thyroid forward to help tense the vocal cords , thus increasing the pitch of the voice.
The cricothyroid joint (or articulation) is a joint connecting the cricoid cartilage and the thyroid cartilage. It plays a key role in adjusting human voice pitch by changing the tension of the vocal cords .
A superior laryngeal nerve palsy changes the pitch of the voice and causes an inability to make explosive sounds due to paralysis of the cricothyroid muscle. If no recovery is evident three months after the palsy initially presents, the damage is most likely to be permanent. A bilateral palsy presents as a tiring and hoarse voice.
The cricothyroid muscle attaches to the anterior and lateral external aspects of the cricoid arch. [1] The cricopharyngeus part of inferior pharyngeal constrictor muscle attaches onto the cricoid arch posterior to the attachment of the cricothyroid muscle. [1]
Cricothyroid may refer to: Cricothyroid muscle; Cricothyroid ligament This page was last edited on 15 ...
The cricothyroid ligament is composed of two parts: the median cricothyroid ligament along the midline (a thickening of the cricothyroid membrane). It is a flat band of white connective tissue that connects the front parts of the contiguous margins of the cricoid and thyroid cartilages. It is a thick and strong ligament, narrow above and broad ...
The recurrent laryngeal nerves control all intrinsic muscles of the larynx except for the cricothyroid muscle. [15] [a] These muscles act to open, close, and adjust the tension of the vocal cords, and include the posterior cricoarytenoid muscles, the only muscle to open the vocal cords.
In this, the muscle is an antagonist of the lateral cricoarytenoid muscle. [1] The muscle additionally draws the arytenoid cartilages posterior-ward, thus (assisting in) lengthening the vocal cords (here acting as synergist of the cricothyroid muscle). The lateral-most portion of the muscle also draws the arytenoid cartilages lateral-ward ...