Embryo: Difference between revisions
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In most of the animal population, an embryo is an organism in the earliest stages of development, from fertilization until birth.<br>In [[ | In most of the animal population, an embryo is an organism in the earliest stages of development, from fertilization until birth.<br>In [[Human|Humans]], the term Embryo is used predominantly in the first week of [[Development|development]] until the eighth week, after which, the term [[Foetus|foetus]] is most commonly used. <ref>http://groups.molbiosci.northwestern.edu/holmgren/Glossary/Definitions/Def-E/embryo.html</ref> | ||
<ref>http://groups.molbiosci.northwestern.edu/holmgren/Glossary/Definitions/Def-E/embryo.html</ref> | |||
Development of the embryo is called [[Embryogenesis|embryogenesis]], and begins after the [[Zygote|zygote]] has been formed upon [[Fertilisation|fertilisation]] of the [[Egg|egg]] by the [[Sperm|sperm]]. An embryo contaians a full compliment of [[Genetic material|genetic material]], but has little in the way of recognisable external features. once these begin to develop around the 9th week of [[Pregnancy|pregnancy]], the embryo starts to be refered to as a foetus <ref>http://www.healthline.com/</ref>. | |||
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Revision as of 22:10, 27 November 2014
In most of the animal population, an embryo is an organism in the earliest stages of development, from fertilization until birth.
In Humans, the term Embryo is used predominantly in the first week of development until the eighth week, after which, the term foetus is most commonly used. [1]
Development of the embryo is called embryogenesis, and begins after the zygote has been formed upon fertilisation of the egg by the sperm. An embryo contaians a full compliment of genetic material, but has little in the way of recognisable external features. once these begin to develop around the 9th week of pregnancy, the embryo starts to be refered to as a foetus [2].