primary germ layers

primary germ layers

Glossary of Biotechnology for Food and Agriculture . 2015.

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  • Derivatives of primary germ layers — ▪ Table Derivatives of primary germ layers Ectoderm epidermis cutaneous derivatives epithelium of:     mouth; oral glands     nasal passages     sense passages central nervous system peripheral nervous system hypophysis; suprarenal medulla… …   Universalium

  • Germ layer — [ http://www.ncbi.nih.gov/About/primer/genetics cell.html NCBI] .] A germ layer is a collection of cells, formed during animal embryogenesis. Germ layers are particularly pronounced in the vertebrates; however, all animals more complex than… …   Wikipedia

  • germ layer theory — the theory that the embryo develops three primary germ layers, each of which gives rise to definite organ derivatives …   Medical dictionary

  • germ layer — n any of the three primary layers of cells differentiated in most embryos during and immediately following gastrulation * * * any of the three distinct types of tissue found in the very early stages of embryonic development (see ectoderm,… …   Medical dictionary

  • germ layer — germ′ lay er n. dvl any of the three primary embryonic cell layers Compare ectoderm,endoderm,mesoderm • Etymology: 1875–80 …   From formal English to slang

  • germ layer — n. Embryology any of the three primary layers of cells (ectoderm, endoderm, and mesoderm) from which the various organs and parts of the organism develop by further differentiation …   English World dictionary

  • germ layer — noun Date: 1877 any of the three primary layers of cells differentiated in most embryos during and immediately following gastrulation …   New Collegiate Dictionary

  • germ layer — one of the three primary embryonic cell layers. Cf. ectoderm, endoderm, mesoderm. [1875 80] * * * …   Universalium

  • germ layer — /ˈdʒɜm leɪə/ (say jerm layuh) noun one of the three primary embryonic cell layers, i.e., ectoderm, endoderm, and mesoderm …  

  • germinal layers — Primary cell of the embryo: ectoderm, mesoderm, and endoderm, from which tissues and organs of the adult are formed; germ layer …   Dictionary of invertebrate zoology

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