mesoblastn.

Brit.

/ˈmɛsə(ʊ)blɑːst/,

/ˈmɛsə(ʊ)blast/, U.S.

/ˈmɛzəˌblæst/; see also meso- comb. form.

Origin: Formed within English, by compounding. Etymons: meso- comb. form, -blast comb. form.

Etymology: < meso- comb. form + -blast comb. form. Compare earlier cytoblast n.

†1. Cell Biology. L. J. R. Agassiz's name for: a cell nucleus. Obsolete. rare.

ΘΚΠ

the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > embryo parts > [noun] > membrane and layers of cells

germinal layer1836

cell layer1843

mucous layer1846

germ layer1855

mesoblast1857

blastoderm1859

head fold1873

mesoderm1873

epiblast1875

hypoblast1875

splanchnopleure1875

mesenchyme1881

acroblast1884

mesothelium1886

epimere1890

mesectoderm1894

mesendoderm1894

cœloblast1895

placode1907

shield1913

mesentoderm1921

meristoderm1945

bilayer1962

1857 L. J. R. Agassiz Contrib. Nat. Hist. U.S.A. II. 465 (note) Since the word nucleus implies a body around which something condenses, and nothing of the kind takes place here, the name mesoblast is certainly a much preferable designation for that part of the cell which is commonly called nucleus.

1891 New Sydenham Soc. Lexicon Mesoblast,..also, the same as Mesoplast.

2. Embryology. The mesoderm of an embryo, esp. in the earliest stages of development. Also as a count noun: a cell of the mesoblast, a primitive mesodermal cell.

ΚΠ

1871 T. H. Huxley Man. Anat. Vertebrated Animals i. 10 Between these appears the intermediate stratum (mesoblast).

1873 F. M. Balfour in Q. Jrnl. Microsc. Sci. 13 268 These changes result in the formation of a hypoblast and mesoblast, the upper layer of cells remaining comparatively unaltered as the epiblast.

1881 Q. Jrnl. Microsc. Sci. 21 73 The two layers of the mesoblast, somatic and splanchnic.

1892 Amer. Naturalist 26 1046 As an epibolic gastrula begins to form, a pair of mes-entoblasts become recognizable as the primary mesoblasts.

1939 T. L. Green Pract. Animal Biol. ii. 236 The musculature, skeleton and connective tissues arise from the mesodermic somites or ‘pro-vertebrae’ formed in the mesoblast.

1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) I. vi. 183/1 The growth cones of those destined to become spinal motoneurons..push out through the enveloping mesoderm in complete separation from each other and from the mesoblasts.

1992 Development Suppl. 93 The disposition of the Anlage fields of the neural plate and the intraembryonic mesoblast in the upper layer of the chicken blastoderm was studied at the primitive streak stage.

Derivatives

† mesoblasted adj. Obsolete rare having a nucleus, nucleated.

ΚΠ

1857 L. J. R. Agassiz Contrib. Nat. Hist. U.S.A. II. 617 Some of the mesoblasted cells are united to those without mesoblasts.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesoblast
释义	mesoblastn. Brit. /ˈmɛsə(ʊ)blɑːst/, /ˈmɛsə(ʊ)blast/, U.S. /ˈmɛzəˌblæst/; see also meso- comb. form. Origin: Formed within English, by compounding. Etymons: meso- comb. form, -blast comb. form. Etymology: < meso- comb. form + -blast comb. form. Compare earlier cytoblast n. †1. Cell Biology. L. J. R. Agassiz's name for: a cell nucleus. Obsolete. rare. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > embryo parts > [noun] > membrane and layers of cells germinal layer1836 cell layer1843 mucous layer1846 germ layer1855 mesoblast1857 blastoderm1859 head fold1873 mesoderm1873 epiblast1875 hypoblast1875 splanchnopleure1875 mesenchyme1881 acroblast1884 mesothelium1886 epimere1890 mesectoderm1894 mesendoderm1894 cœloblast1895 placode1907 shield1913 mesentoderm1921 meristoderm1945 bilayer1962 1857 L. J. R. Agassiz Contrib. Nat. Hist. U.S.A. II. 465 (note) Since the word nucleus implies a body around which something condenses, and nothing of the kind takes place here, the name mesoblast is certainly a much preferable designation for that part of the cell which is commonly called nucleus. 1891 New Sydenham Soc. Lexicon Mesoblast,..also, the same as Mesoplast. 2. Embryology. The mesoderm of an embryo, esp. in the earliest stages of development. Also as a count noun: a cell of the mesoblast, a primitive mesodermal cell. ΚΠ 1871 T. H. Huxley Man. Anat. Vertebrated Animals i. 10 Between these appears the intermediate stratum (mesoblast). 1873 F. M. Balfour in Q. Jrnl. Microsc. Sci. 13 268 These changes result in the formation of a hypoblast and mesoblast, the upper layer of cells remaining comparatively unaltered as the epiblast. 1881 Q. Jrnl. Microsc. Sci. 21 73 The two layers of the mesoblast, somatic and splanchnic. 1892 Amer. Naturalist 26 1046 As an epibolic gastrula begins to form, a pair of mes-entoblasts become recognizable as the primary mesoblasts. 1939 T. L. Green Pract. Animal Biol. ii. 236 The musculature, skeleton and connective tissues arise from the mesodermic somites or ‘pro-vertebrae’ formed in the mesoblast. 1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) I. vi. 183/1 The growth cones of those destined to become spinal motoneurons..push out through the enveloping mesoderm in complete separation from each other and from the mesoblasts. 1992 Development Suppl. 93 The disposition of the Anlage fields of the neural plate and the intraembryonic mesoblast in the upper layer of the chicken blastoderm was studied at the primitive streak stage. Derivatives † mesoblasted adj. Obsolete rare having a nucleus, nucleated. ΚΠ 1857 L. J. R. Agassiz Contrib. Nat. Hist. U.S.A. II. 617 Some of the mesoblasted cells are united to those without mesoblasts. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1857
随便看	physical influence physical influx physical isomerism physical jerks physical laboratory physical metallurgy physical mineralogy physical object physical optics physical philosophy physical point physical retort physical science physical scientist physical sign physical theatre physical theology physical therapies physical therapist physical therapists physical therapy physical torture physical training physical-anthropological physical-chemical