The vocal fold comprises five layers (deep to superficial layers as follows): thyroarytenoid muscle, deep lamina propria, intermediate lamina propria, superficial lamina propria, and the squamous epithelium. The deep and intermediate lamina propria both are grouped to form the vocal ligament mentioned above.
The CT muscle connects the two main cartilages that hold the vocal folds. When the CT Stretching Muscle contracts, the cartilages can rock and glide on top of each other resulting in the vocal folds lengthening, thinning, and stretching. The amount of stretch that occurs helps change the pitch being produced.
Those muscles inserted on the inferior surface of the hyoid (sternohyoid and omohyoid muscles) and the sternothyroid muscle act to depress the larynx.
The space inside the throat above the larynx is the pharynx. It is surrounded by muscles and the hyoid bone. Changing the shape and size of the pharynx alters resonance.
As nouns the difference between ligament and membraneis that ligament is (anatomy) a band of strong tissue that connects bones to other bones while membrane is a flexible enclosing or separating tissue forming a plane or film and separating two environments (usually in a plant or animal).
The arytenoids form the cricoarytenoid joints with the cricoid cartilage. At these joints, the vocal cords can come together, move apart, tilt anteriorly or posteriorly, and rotate. These movements help control the functions of the larynx such as the pitch of the sound.
The arytenoid cartilages help move the vocal folds allowing tension, relaxation, or approximation of these because the vocal folds, being attached to the arytenoids, move along with them. Several intrinsic laryngeal muscles and ligaments are also attached to the arytenoids and can move them around.
The arytenoid cartilages are part of the posterior part of the larynx.
The aryepiglottic muscle, or aryepiglotticus muscle is an intrinsic muscle of the larynx. The muscle originates from the muscular process of arytenoid cartilage and inserts to the aryepiglottic fold and lateral border of epiglottis. The muscle adducts arytenoid cartilages and acts as a sphincter on the laryngeal inlet.
Arytenoid (arrows) is deflected posteriorly. during withdrawal of the endotracheal tube, with. an incompletely deflated cuff (left), or anteriorly as. the arytenoid tip is caught on the tube lumen during. intubation (right). (
The cricotracheal ligament connects the cricoid ligament with the first ring of the trachea. The internal space of the larynx extends along the laryngeal inlet to the lower border of the cricoid cartilage. It is pyramid shaped with its superior base pointing to the tongue and its apex to the trachea.
Origin and insertionThyroarytenoid muscle arises from the inner surface of the inferior part of thyroid cartilage, near the midline, as well as cricothyroid ligament. Its fibers pass posterolaterally to insert into the anterolateral surface of the arytenoid cartilage.
Its innervation is by the recurrent laryngeal nerve (from vagus) just like all the intrinsic muscles of the larynx except the cricothyroid muscle.
The vestibular folds (Ventricular Folds ; plicœ ventriculares; superior or false vocal cords) are two thick folds of mucous membrane, each enclosing a narrow band of fibrous tissue, the ventricular ligament which is attached in front to the angle of the thyroid cartilage immediately below the attachment of the
Vocal ligament: The vocal ligament is composed of:Body: The vocal fold body is composed of the thyroarytenoid muscle. This muscle helps close the glottis and regulate tension of vocal fold during speaking and/or singing. The medial portion of this muscle is also called “vocalis muscle.â€
The pharynx, commonly called the throat, is a passageway that extends from the base of the skull to the level of the sixth cervical vertebra. It serves both the respiratory and digestive systems by receiving air from the nasal cavity and air, food, and water from the oral cavity.
The fold of mucosa which wraps around the vocal ligament is called the vocal fold and this is the true vocal cord. You've got this mucous membrane which hangs down from the side of the epiglottis and it folds.
The thyroid cartilage is the largest of the laryngeal cartilages. It is formed by a right and a left lamina that are separated posteriorly and joined together at an acute angle in the anterior midline, forming the laryngeal prominence, commonly known as the Adam's apple.
The area of the throat containing the vocal cords and used for breathing, swallowing, and talking. Also called larynx.
