Contents
What is the Aryepiglottic fold?
Abstract. The aryepiglottic folds extend between the arytenoid cartilage and the lateral margin of the epiglottis on each side and constitute the lateral borders of the laryngeal inlet. They are involved in physiologic closure mechanisms of the larynx and in pathologic conditions such as inspiratory stridor.
What are the vocal ligaments?
The vocal ligament is the medial edge of the laryngeal triangular membrane (also called conus elasticus). The vocal muscle is the most internal portion of the large thyroarytenoid muscle lying externally to the laryngeal quadrangular membrane. The muscle fibers are parallel and external to the vocal ligament.
What are arytenoid cartilages?
The arytenoid cartilages are paired pyramid-shaped structures of cartilage found in the larynx, which are essential to the production of vocal sound. They are located on the lateral part of the superior border of the lamina of the cricoid cartilage and help form the cricoarytenoid joints.
What are the laryngeal membranes?
The membranes and ligaments of the larynx are the:
- thyrohyoid membrane (& median thyrohyoid ligament)
- lateral thyrohyoid ligament.
- quadrangular membrane (& vestibular ligament)
- cricothyroid ligament complex (conus elasticus)
- posterior cricoarytenoid ligament.
What does the aryepiglottic muscle do?
The aryepiglottic muscle together with the transverse arytenoid and the thyroarytenoid work as a sphincter and close the larynx as we swallow or cough. Its innervation is by the recurrent laryngeal nerve (from vagus) just like all the intrinsic muscles of the larynx except the cricothyroid muscle.
What is the Vocalis muscle?
Vocalis Muscle The vocalis is an intrinsic laryngeal muscle comprised of fibers from the thyroarytenoid muscle. It runs parallel and attaches directly to the vocal ligament. It originates on the interior surface of the thyroid cartilage and inserts on the vocal process of the arytenoid cartilage.
What are the 9 laryngeal cartilages?
The laryngeal skeleton is nine cartilages: the thyroid cartilage, cricoid cartilage, epiglottis, arytenoid cartilages, corniculate cartilages, and cuneiform cartilages. The first three are unpaired cartilages, and the latter three are paired cartilages.
Is annoyed cartilage?
The arytenoid (/ærɪˈtiːnɔɪd/) cartilages are a pair of small three-sided pyramids which form part of the larynx, to which the vocal folds (vocal cords) are attached. These allow and aid in the vocal cords’ movement. Each is pyramidal or ladle-shaped and has three surfaces, a base, and an apex.
Does the thyroid cartilage house and support the arytenoids?
(Cartilage is a strong but flexible tissue.) It houses the vocal folds, also known as the vocal cords. Despite its name, the thyroid cartilage has nothing to do with the thyroid gland or its processes. It plays a role in the production of the human voice, providing protection and support for the vocal folds.
What is superior laryngeal nerve?
The superior laryngeal nerve, a branch of the vagus nerve, innervates the cricothyroid muscle of the larynx. This muscle stretches, tenses, and adducts the vocal cord. Superior laryngeal neuralgia usually appears as a postsurgical complication.
What Innervates Interarytenoids?
Conclusion: The present study confirms that the internal branch of the superior laryngeal nerve provides a motor innervation to the interarytenoid muscles.
What do the Vocalis muscles do?
Vocalis Muscle It originates on the interior surface of the thyroid cartilage and inserts on the vocal process of the arytenoid cartilage. It works to tense and thicken the vocal cords, which varies tonal qualities and pitches of your voice.