SciELO - Scientific Electronic Library Online

 
vol.36 número2Perfil Descriptivo de la Composición Corporal en Medallistas Femeninos de Voleibol Olímpico Definido Mediante Medición de Bioimpedancia Multicanal: Estudio del Equipo Rio 2016Utilicemos Kahoot! Anatomía índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


International Journal of Morphology

versión On-line ISSN 0717-9502

Resumen

SMOK, Carolina; ROA, Ignacio; PRIETO, Ruth  y  ROJAS, Mariana. Transiting from Embryo to Fetus: The Metamorphosis of the Chordata. Int. J. Morphol. [online]. 2018, vol.36, n.2, pp.709-715. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022018000200709.

During the period of development known as prefetal, the embryo changes its ictiomorphic characteristics common to all vertebrates and gradually acquires the proper forms of the species it represents. During this period the face is formed, the pharyngeal arches (branchial) involute forming the neck, and the limbs appear. In addition, the physiological umbilical hernia is constituted, which consists of the presence of intestinal loops inside the umbilical cord. The nervous system originates the telencephalic vesicles, the diencephalon, mesencephalon, metencephalon, and myelencephalon. This period corresponds to a stage of maximum susceptibility to teratogens that can generate malformations in all animal species. The objective of this paper is to present the main events that took place during the preferential period, as well as a vision and opinion of the authors, proposing a new name for the stage: metamorphic period.

Palabras clave : Embryo; Prefetal; Organogenesis.

        · resumen en Español     · texto en Español     · Español ( pdf )