英和和英

名詞

trophectoderm (複数形 trophectoderms)

1. (biology) The ectoderm from which the trophoblast develops.
   • 1998, Tom P. Fleming, Elizabeth Butler, Jane Collins, Bhav Sheth, Arthur E. Wild, Cell Polarity and Mouse Early Development, James R. Bartles, E. Edward Bittar (editors), Cell Polarity, JAI Press, page 79,

     In addition to Na+, K+-ATPase (see above), the Na+-independent GLUT2 glucose cotransporter is localized on trophectoderm basolateral membranes (Aghayan et al., 1992).

   • 1998, T. J. Soos, M. Park, H. Kiyokawa, A. Koff Regulation of the cell cycle by CDK inhibitors, Michele Pagano (editor), Cell Cycle Control: Results and Problems in Cell Differentiation, Springer, page 125,

     The embryo is mostly derived from the descendants of the inner cell mass, whereas the external cells, the trophoblasts or trophectoderm, produce no embryonic structures (Gardner 1983; Hogan et al. 1994).

   • 2011, Natalia López-Moratalla, Maria Cerezo 7: The Self-construction of a Living Organism, George Terzis, Robert Arp (editors), Information and Living Systems: Philosophical and Scientific Perspectives, The MIT Press, page 199,

     In some cases, the fusion of the trophectoderms of two early embryos by the interaction of their cells inside the same zona pellucida can explain the fact that the two embryos share certain extraembryonic tissues.

Further reading

• ectoderm on Wikipedia.
• trophoblast on Wikipedia.