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The posterior surface is triangular, smooth, concave, and gives attachment to the arytenoid muscle and transversus.. The antero-lateral surface is somewhat convex and rough. On it, near the apex of the cartilage, is a rounded elevation (colliculus) from which a ridge (crista arcuata) curves at first backward and then downward and forward to the vocal process.
In the human larynx, the cuneiform cartilages (from Latin: cuneus 'wedge' + forma 'form'; also known as cartilages of Wrisberg) are two small, elongated pieces of yellow elastic cartilage, placed one on either side, in the aryepiglottic fold. [1] The cuneiforms are paired cartilages that sit on top of and move with the arytenoids. [2]
arytenoid, oblique: head, larynx (left/right) arytenoid cartilage on one side arytenoid cartilage on opposite side superior laryngeal branch of superior thyroid artery: vagus nerve [CNX], recurrent laryngeal nerve: approximates arytenoid cartilages (closes rima glottidis) 2 1 arytenoid, oblique, aryepiglottic part: head, larynx (left/right ...
Posterior surface of muscular process of the arytenoid cartilage: Nerve: Recurrent laryngeal nerve branch of the vagus nerve (CN X) Actions: Abducts and laterally rotates arytenoid cartilage, pulling vocal ligaments away from the midline and forward and so opening rima glottidis: Antagonist: Lateral cricoarytenoid muscle: Identifiers; Latin
Its main use is to draw the arytenoid cartilages forward toward the thyroid, thus relaxing and shortening the vocal folds. But, owing to the connection of the deeper portion with the vocal fold, this part, if acting separately, is supposed to modify its elasticity and tension, while the lateral portion rotates the arytenoid cartilage inward ...
Download as PDF; Printable version ... ligament extends from the lamina of the cricoid cartilage to the medial surface of the base and muscular process of the ...
Muscular process of the arytenoid cartilage: Nerve: Recurrent laryngeal branch of the vagus: Actions: Adduct and medially rotate the cartilage, pulling the vocal ligaments towards the midline and backwards and so closing off the rima glottidis: Antagonist: Posterior cricoarytenoid muscle: Identifiers; Latin: musculus cricoarytaenoideus ...
The muscular process of arytenoid cartilage is the posterolateral projection of the (short, rounded, and prominent) lateral angle of the base of the arytenoid cartilage. The muscular process gives insertion to the posterior cricoarytenoid muscles behind, and to the lateral cricoarytenoid muscles in front.
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