What is the function of the cricothyroid?
Dec 05, 2019 · The main function of the cricothyroid muscle is to facilitate vocalization . This article will discuss the anatomy and function of the cricothyroid muscle. Contents Origin and insertion Relations Innervation Blood supply Functions Clinical …
What is the function of the cricothyroid muscle during phonation?
Nov 15, 2021 · Function. The cricothyroid muscle produces tension and elongation of the vocal cords. They draw up the arch of the cricoid cartilage and tilt back the upper border of the cricoid cartilage lamina.
How does the cricothyroid joint move?
Apr 05, 2020 · What is the function of the Cricothyroid muscle? The cricothyroid muscle is the only tensor muscle of the larynx aiding with phonation. It attaches to the anterolateral aspect of the cricoid and the inferior cornu and lower lamina of the thyroid cartilage, and its action tilts the thyroid forward to help tense the vocal cords.
What nerve innervates the cricothyroid?
The cricothyroid muscle is the only tensor muscle of the larynx aiding with phonation. It attaches to the anterolateral aspect of the cricoid and the inferior cornu and lower lamina of the thyroid cartilage, and its action tilts the thyroid forward to help tense the vocal cords.
What happens if cricothyroid muscle is damaged?
When the external superior laryngeal nerve is damaged, it results in the paralysis of the cricothyroid muscle, which functions to lengthen, stiffen, and thin the true vocal cord.
What happens if cricothyroid is paralyzed?
Conclusions: Although the vocal cord position was not influenced by CT muscle function, coexisting CT muscle paralysis may damage the voice by impairing vocal fold vibration in UVFP patients.
Does cricothyroid increase pitch?
The cricothyroid muscle, which rotates the major laryngeal cartilages, in turn passively stretches and tightens the vocal folds. As they lengthen and become stiffer, the fundamental frequency of vocal fold vibration increases and a higher-pitched sound is produced.
What is CT muscle?
The CT muscle is located on the exterior of the larynx, just under the skin. The thyroid cartilage pivots or rocks forward on top of the cricoid cartilage when the CT muscle contracts. Inferior to the thyroid cartilage and superior to the cricoid cartilage is a groove.
What Innervates the cricothyroid?
The classical understanding of the anatomy is that the cricothyroid muscle (CTM) is innervated solely by the external branch of the superior laryngeal nerve (EBSLN), and the endolaryngeal muscles are covered only by the recurrent laryngeal nerve (RLN).
What happens when the cricothyroid contracts?
When the cricothyroid muscle contracts, it pulls the thyroid cartilage downward and anteriorly, causing rotation about the cricothyroid joint. This narrows the space between the thyroid and cricoid cartilages, and moves the thyroid cartilage away from the arytenoid cartilage.
Is cricothyroid a strap muscle?
The cricothyroid muscle is the only tensor muscle of the larynx aiding with phonation. It is innervated by the superior laryngeal nerve....Cricothyroid muscleNerveExternal branch of Superior laryngeal nerve (branch of the vagus nerve)Actionstension and elongation of the vocal foldsIdentifiers10 more rows
What is the Cricothyroid joint?
The cricothyroid joint (CTJ) plays a key role in pitch adjustment of the human voice. It allows an external elongation of the vocal fold performed by the cricothyroid muscle with a consecutive stretching and increasing of tension.