The First Metacarpal is the Thumb First Phalange: EvoDevo Implications

We examined the status of the first metacarpal bone whose shape, fetal and post-natal development correspond to those of the thumb proximal phalanx. Galen already described this, circa 170 CE. Our radiographic data confirm that the pre-axial (radial or anterior) side of the hand matures, later than...

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Autores principales:	Valenzuela,Carlos, Y, Berríos-Loyola,R, Canals,M
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2009
Materias:	Bone maturity Thumb EvoDevo First metacarpal Thumb's first phalanx
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400004
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spelling	oai:scielo:S0717-950220090004000042010-05-18The First Metacarpal is the Thumb First Phalange: EvoDevo ImplicationsValenzuela,Carlos, YBerríos-Loyola,RCanals,M Bone maturity Thumb EvoDevo First metacarpal Thumb's first phalanx We examined the status of the first metacarpal bone whose shape, fetal and post-natal development correspond to those of the thumb proximal phalanx. Galen already described this, circa 170 CE. Our radiographic data confirm that the pre-axial (radial or anterior) side of the hand matures, later than the post-axial (ulnar or posterior) side, both, pre- and post-natally. A new perspective on thumb primate and human ontogeny is discussed and comparative observations on the Evolutionary Development (EvoDevo) of the thumb and the first toe are proposed along with a nomenclature honoring Galen's original proposition.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.27 n.4 20092009-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400004en10.4067/S0717-95022009000400004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Bone maturity Thumb EvoDevo First metacarpal Thumb's first phalanx
spellingShingle	Bone maturity Thumb EvoDevo First metacarpal Thumb's first phalanx Valenzuela,Carlos, Y Berríos-Loyola,R Canals,M The First Metacarpal is the Thumb First Phalange: EvoDevo Implications
description	We examined the status of the first metacarpal bone whose shape, fetal and post-natal development correspond to those of the thumb proximal phalanx. Galen already described this, circa 170 CE. Our radiographic data confirm that the pre-axial (radial or anterior) side of the hand matures, later than the post-axial (ulnar or posterior) side, both, pre- and post-natally. A new perspective on thumb primate and human ontogeny is discussed and comparative observations on the Evolutionary Development (EvoDevo) of the thumb and the first toe are proposed along with a nomenclature honoring Galen's original proposition.
author	Valenzuela,Carlos, Y Berríos-Loyola,R Canals,M
author_facet	Valenzuela,Carlos, Y Berríos-Loyola,R Canals,M
author_sort	Valenzuela,Carlos, Y
title	The First Metacarpal is the Thumb First Phalange: EvoDevo Implications
title_short	The First Metacarpal is the Thumb First Phalange: EvoDevo Implications
title_full	The First Metacarpal is the Thumb First Phalange: EvoDevo Implications
title_fullStr	The First Metacarpal is the Thumb First Phalange: EvoDevo Implications
title_full_unstemmed	The First Metacarpal is the Thumb First Phalange: EvoDevo Implications
title_sort	first metacarpal is the thumb first phalange: evodevo implications
publisher	Sociedad Chilena de Anatomía
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400004
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The First Metacarpal is the Thumb First Phalange: EvoDevo Implications

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