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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.
During an arytenoidectomy, the surgeon removes the arytenoid cartilage. The arytenoid cartilages are a pair of pyramid-shaped structures in the larynx (voice box) that play an essential role in vocal sound production. Various techniques, such as laser surgery or conventional surgical instruments, may be employed based on the severity of the ...
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]
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
Diagram of arytenoid adduction procedure, lateral view. Local anesthesia is preferred for arytenoid adduction so that the voice can be tested during the procedure. A horizontal skin incision is made at the inferior border of the thyroid cartilage. A window is cut in the thyroid cartilage for a suture to be passed through later in the procedure.
The vibratory portion of the vocal fold in the anterior glottis is connected to the thyroid cartilage anteriorly by the macula flava and anterior commissure tendon, or Broyles' ligament. Posteriorly, this vibratory portion is connected to the vocal process of the arytenoid cartilage by the posterior macula flava.
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. [1]
Just above the vocal process is a shallow depression, the oblong fovea of the arytenoid cartilage. Together they constitute the insertion for the vocalis muscle. [3] Vocal process granulomas are rare and benign lesions that occur in 0.9–2.7% of adults with a voice disorder. Most occurrences and forms of vocal process granulomas regress ...