| 释义 |
hypoblast
hy·po·blast H0364200 (hī′pə-blăst′)n. See endoderm.
hy′po·blas′tic adj.hypoblast (ˈhaɪpəˌblæst) n1. (Zoology) embryol Also called: endoblast the inner layer of an embryo at an early stage of development that becomes the endoderm at gastrulation2. (Zoology) a less common name for endoderm ˌhypoˈblastic adjhy•po•blast (ˈhaɪ pəˌblæst)
n. 1. the endoderm of an embryo. 2. the cells entering into the inner layer of a young gastrula, capable of becoming endoderm and, to some extent, mesoderm. [1820–30] hy`po•blas′tic, adj. Thesaurus| Noun | 1. | hypoblast - the inner germ layer that develops into the lining of the digestive and respiratory systemsendoblast, endoderm, entoblast, entodermgerm layer - (embryology) any of the 3 layers of cells differentiated in embryos following gastrulation |
hypoblast
hypoblast[′hī·pō‚blast] (embryology) endoderm hypoblast
endoderm [en´do-derm] the innermost of the three primary germ layers of the embryo; from it are derived the epithelium of the pharynx, respiratory tract (except the nose), digestive tract, bladder, and urethra. Called also endoblast, entoderm, entoblast, and hypoblast.hy·po·blast (hī'pō-blast), Cell layer adjacent to the yolk sac cavity and subjacent to the epiblast of a bilayered embryo. [hypo- + G. blastos, germ] hypoblast (hī′pə-blăst′)n. See endoderm.
hy′po·blas′tic adj.en·do·derm (en'dō-dĕrm) The innermost of the three primary germ layers of the embryo (ectoderm, mesoderm, endoderm); from it are derived the epithelial lining of the primordial gut and the epithelial component of the glands and other structures (e.g., lower respiratory system) that develop as outgrowths from the gut tube.
Synonym(s): entoderm, hypoblast. [endo- + G. derma, skin]hypoblast the innermost germ layer in a GASTRULA.hypoblast
Related to hypoblast: primitive streak, extraembryonic mesodermSynonyms for hypoblastnoun the inner germ layer that develops into the lining of the digestive and respiratory systemsSynonyms- endoblast
- endoderm
- entoblast
- entoderm
Related Words |