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The cricoid lamina is the roughly quadrilateral broader and flatter posterior portion of the cricoid cartilage. It measures 2-3 cm superoposteriorly. [1] The cricoid lamina exhibits a midline vertical ridge posteriorly; the ridge creates posterior concavities to either side. [1]
The cricoarytenoid joint is a joint connecting the cricoid cartilage and the arytenoid cartilage. It is a very shallow ball-and-socket joint. It allows for rotation and gliding motion. This controls the abduction and adduction of the vocal cords.
The thyroid cartilage and cricoid cartilage lie just above the gland, below the Adam's apple. The isthmus extends from the second to third rings of the trachea, with the uppermost part of the lobes extending to the thyroid cartilage and the lowermost around the fourth to sixth tracheal rings. [6]
The cricothyroid ligament is named after the two structures it connects: the cricoid cartilage and the thyroid cartilage. It is also known as the cricothyroid membrane, and the cricovocal membrane. [3] The various parts of the cricothyroid ligament have been named in many different ways, which can cause confusion.
The cricothyroid joint (or articulation) is a joint connecting the cricoid cartilage and the thyroid cartilage.It plays a key role in adjusting human voice pitch by changing the tension of the vocal cords.
It is usually larger in males than in females. The thyrohyoid membrane is a ligament associated with the thyroid cartilage that connects it with the hyoid bone. It supports the front portion of the larynx. Cricoid cartilage: A ring of hyaline cartilage that forms the inferior wall of the larynx. It is attached to the top of the trachea.
[3] [5] They draw up the arch of the cricoid cartilage and tilt back the upper border of the cricoid cartilage lamina. [3] [5] The distance between the vocal processes and the angle of the thyroid is increased, elongating [3] and thus tensing the vocal folds, [1] thereby resulting in higher pitch phonation. [3]
The large cartilage ring (thyroid cartilage) is located at the upper part of the larynx. The large cartilage is composed of two bands that forms an Adams Apple. [3] The cricoid cartilage is located below the cartilage and it is attached to the trachea. Six thinner cartilages form part of the lateral and posterior walls of the larynx.