blastema


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blas·te·ma

 (blă-stē′mə)
n. pl. blas·te·mas or blas·te·ma·ta (-mə-tə)
1. A mass of undifferentiated cells from which an organ or a body part develops, either in normal development or in the regeneration of a lost body part.
2. A structureless substance from which it was formerly believed that cells are formed.

[Greek blastēma, offspring, sprout, from blastos, bud.]

blas·te′mal, blas′te·mat′ic (blăs′tə-măt′ĭk), blas·te′mic (blă-stē′mĭk) adj.

blastema

(blæˈstiːmə)
n, pl -mas or -mata (-mətə)
(Physiology) a mass of undifferentiated animal cells that will develop into an organ or tissue: present at the site of regeneration of a lost part
[C19: from New Latin, from Greek: offspring, from blastos bud]
blastemic adj

blas•te•ma

(blæˈsti mə)

n., pl. -mas, -ma•ta (-mə tə)
an aggregation of cells in an early embryo capable of differentiation into specialized tissue and organs.
[1840–50; < New Latin < Greek blástēma (blastē- variant s. of blasteîn to sprout + -ma n. suffix of result)]
blas•te′mal, blas•te•mat•ic (ˌblæs təˈmæt ɪk) blas•te′mic (-ˈsti mɪk, -ˈstɛm ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.blastema - a mass of undifferentiated cells from which an organ or body part develops
cell - (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
Translations

blas·te·ma

n. blastema, sustancia primaria de la cual se originan las células.
References in periodicals archive ?
The blastema area stained positive for vimentin, CD99 and CD117, but negative for CK, RCC, CD10, CK7, EMA, CgA, Syn, CD34, WT-1, myogenin and myoD1.
When the limb of an axolotl is severed, a collection of stem cells known as a blastema forms.
MiRNA profiles as a predictor of chemoresponsiveness in Wilms' tumor blastema.
The cells in the blastema aren't all-purpose, though; they only regenerate those tissues that they are derived from.
Note the presence of blastema and fibrovascular stroma in the background (Diff-Quick, original magnification 3400 [A]; Papanicolaou, original magnification 3200 [B]).
Unlike typical mammals, which heal wounds by forming a scar, these mice begin by forming a blastema, a structure associated with rapid cell growth.
The ureteral bud arises from the dorsal aspect of the distal mesonephric duct, which extends in a dorsocranial fashion to meet and induce differentiation of the metanephric blastema.
Each fin develops an independent blastema through the condensation, and differentiation into osteoblasts, of undifferentiated mesenchyme in the medial part of the fin.