hypomere

hypomere
1. The portion of the myotome that extends ventrolaterally to form body-wall and limb muscle, innervated by the primary ventral ramus of a spinal nerve. See hypaxial. 2. Less commonly, the somatic and splanchnic layers of the lateral mesoderm which give rise to the lining of the celom. [hypo- + G. meros, part]

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hy·po·mere 'hī-pə-.mi(ə)r n one of the segments from which the walls of the pleuroperitoneal cavity develop

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hy·po·mere (hiґpo-mēr) 1. the ventrolateral portion of a myotome, innervated by an anterior ramus of a spinal nerve. 2. the lateral plate of mesoderm that develops into the walls of the body cavities.

Medical dictionary. 2011.

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  • hypomere — noun A part that the walls of a pleuroperitoneal cavity grow …   Wiktionary

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  • mesomere — 1. A blastomere of a size intermediate between a macromere and a micromere. 2. The zone between an epimere and a hypomere. [meso + G. meros, part] * * * me·so·mere mez ə .mi(ə)r, mēz , mēs , mes n a blastomere of medium size …   Medical dictionary

  • EMBRYOGENÈSE ANIMALE — Chez les animaux, l’œuf est une cellule unique, souvent de grande dimension, à noyau digamétique, c’est à dire formé par l’assemblage des noyaux des cellules reproductrices ou gamètes. Le cytoplasme cellulaire renferme des réserves plus ou moins… …   Encyclopédie Universelle

  • Lateral plate mesoderm — Infobox Embryology Name = PAGENAME Latin = GraySubject = 6 GrayPage = 50 Caption = Transverse section of a chick embryo of forty five hours’ incubation. * Chordamesoderm: yellow, at notochord. * Paraxial mesoderm: red, at somite. * Intermediate… …   Wikipedia

  • hypomeron — see hypomere …   Dictionary of invertebrate zoology

  • hypophare — see hypomere …   Dictionary of invertebrate zoology

  • hypaxial — Below any axis, such as the spinal axis or the axis of a limb. See hypomere. [G. hypo, beneath, + axis] * * * hyp·ax·i·al ( )hip ak sē əl, ( )hīp adj situated beneath the axis of the spinal column * * * hyp·ax·i·al (hi pakґse əl) ventral to… …   Medical dictionary

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