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Desarrollo embrionario del esqueleto facial y principales malformaciones asociadas a su desarrollo anómalo

Authors: Guerrero Algarte, María;

Desarrollo embrionario del esqueleto facial y principales malformaciones asociadas a su desarrollo anómalo

Abstract

El desarrollo embrionario facial se produce aproximadamente entre la 4º-10º semana embrionaria. En la 4º semana el ectodermo superficial del primer arco faríngeo o branquial se repliega y da lugar al estomodeo. En la región caudal a este, se forman los rodetes mandibulares (pares), lateralmente se encuentran los rodetes maxilares (pares). Ambos tipos de rodetes se originan a partir del primer par de los arcos faríngeos. Adyacentes a ellos, se ubican las placas nasales laterales y mediales. Sobre la 7º semana, las placas nasales mediales se fusionan centralmente y, a nivel lateral se unen a los rodetes del maxilar. Dicha unión va a producir la formación del segmento intermaxilar, que da lugar a la parte medial del labio superior (philtrum), el premaxilar del maxilar y el paladar primario. Gracias a dos proyecciones mesenquimatosas prolongadas desde la parte medial de los rodetes maxilares, se forma el paladar secundario. La importancia que tiene la correcta formación del primer y segundo arco branquial se observa en la cantidad de diferentes anomalías faciales que se pueden producir cuando no se desarrollan de forma adecuada. Estas malformaciones pueden ser: • Malformaciones vinculadas al 1º arco faríngeo: A. Alteraciones del paladar: Paladar hendido (PH) B. Fisuras faciales: Labio hendido o leporino (LH) C. Malformaciones complejas: Sd Pierre Robin, Sd de Mohr, Sd de Fraser • Malformaciones vinculadas al 1º y 2º arcos faríngeos: Microsomía hemifacial (MHF)

Universidad de Sevilla. Grado en Medicina

Keywords

embryonic facial development, facial anatomy, craniofacial malformations

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green