Arytenoid cartilage

The two arytenoid cartilage or arytenoid (Latin cartilages Aryt ( a) enoideae, Ez cartilage Aryt ( a) enoidea ) are parts of the larynx. They sit at the upper rear joint surfaces of the cricoid cartilage ( cricoid cartilage ). They have a top tip ( apex), and a front ( vocal process ) and side ( muscular process ) protruding part. At the top of the arytenoid cartilage of the small tip cartilage ( cartilage corniculata ) is on in humans. At the front part of the vocal cords are attached. The lateral part is connected to muscles and ligaments.

The arytenoid cartilage play in voicing a major role, not only because their design but also by them feasible movements are complex. For a number of muscles are responsible.

Firstly, the arytenoid cartilages are connected to one another. These so-called intermediate arytenoids muscles are divided into the musculus transversus arytenoideus and the paired musculus obliquus arytenoideus. The latter are diagonal, the transversus transverse. When these muscles tighten, the arytenoid cartilages closer together. The vocal folds are adducted (ie closer together ). This is for the vocalization of importance, since there can be no phonation without adducted vocal folds. Another Adduktionsmuskel the cricoarytenoid muscle lateral extending from the actuator to the side of the cricoid cartilage. The muscle cricoarytenoid posterior for the abduction, that is responsible for each other, removing the vocal folds. This plays a role, especially when inhaled.