Embryo

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Human Embryo (7th week of pregnancy, 5th week p.o.)

The embryo (Greekἔμβρυον émbryon "newborn lamb", "unborn foetus" from ἐν en "in" and βρύειν brýein "to sprout", "to swell"[1]), in plants also called germ or seedling, is generally a living being in the early stage of its ontogenetic development. The human embryo matures in the amniotic fluid within its four embryonic envelopes formed from its own tissue. The development of the embryo, embryonic development or embryogenesis, is described by embryology.

  • In higher plants, the seedling (embryo) consists of radicle (radicula), shoot bud (plumula) and cotyledon or cotyledons. During germination, it develops into the seedling.
  • In animals, the newly developing organism from a fertilised egg cell (zygote) is called an embryo as long as it is still in the mother animal or in an egg shell or eggshell.
  • In humans, after the formation of the internal organs from the 9th week of pregnancy until birth, the embryo is called a foetus or fetus (from Latinfetus "the brood, offspring") and its further development is called fetogenesis.

Literature

References to the work of Rudolf Steiner follow Rudolf Steiner's Collected Works (CW or GA), Rudolf Steiner Verlag, Dornach/Switzerland, unless otherwise stated.
Email: verlag@steinerverlag.com URL: www.steinerverlag.com.
Index to the Complete Works of Rudolf Steiner - Aelzina Books
A complete list by Volume Number and a full list of known English translations you may also find at Rudolf Steiner's Collected Works
Rudolf Steiner Archive - The largest online collection of Rudolf Steiner's books, lectures and articles in English.
Rudolf Steiner Audio - Recorded and Read by Dale Brunsvold
steinerbooks.org - Anthroposophic Press Inc. (USA)
Rudolf Steiner Handbook - Christian Karl's proven standard work for orientation in Rudolf Steiner's Collected Works for free download as PDF.

References

  1. Wilhelm Gemoll, Karl Vretska: „Griechisch-Deutsches Schul- und Handwörterbuch“, Verlag Hölder-Pichler-Tempsky, 9th edition, ISBN 3-209-00108-1