[The cartilaginous differentiation of the second arch in the human. From the traditional to the actual theory. Personal contribution].
Classically, the cartilaginous formation of the second pharyngeal arch has been described as a continuous structure wich will be the primary skeleton of the arch. Actually this theory has experimented a deep change Rodríguez Vázquez, 2005, and Rodríguez Vázquez et al. 2006, have a new cartilaginous differentiation model in the second pharyngeal arch and thus of its derivates in the human craniofacial development. The stapes and Reichert's cartilage have been formed by independent anlages. The cartilaginous differentiation model of the second arch, has allowed us to know and interpret the variations and classify them.
Vázquez
José Francisco Rodríguez
JF
Catedrático de Anatomía y Embriología Humana.
D001934:Branchial Region / Q000196:embryology*; D006801:Humans; D007817:Laryngeal Cartilages / Q000196:embryology*