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dc.creatorLawrence, Cera R.en_US
dc.date.accessioned2012-05-10T13:23:54Z
dc.date.available2012-05-10T13:23:54Z
dc.date.created2008-08-13en_US
dc.date.issued2012-05-10
dc.identifier.otherembryo:125298en_US
dc.identifier.urihttp://hdl.handle.net/10776/1802
dc.description.abstractSpermism was one of two models of preformationism, a theory of embryo generation prevalent in the late seventeenth through the end of the eighteenth century. Spermist preformationism was the belief that offspring develop from a tiny fully-formed fetus contained within the head of a sperm cell. This model developed slightly later than the opposing ovist model because sperm cells were not seen under the microscope until about 1677. Spermism was never as dominant as ovist preformationism, but it had ardent followers whose work and writings greatly influenced the development of embryology in this time period. Spermism was and is now sometimes referred to as animalculism, a name taken from the term most naturalists at the time used to refer to microscopic organisms, or vermiculism, which comes from a specific term for sperm cells referring to their worm-like appearance. The most notable spermist philosophers and scientists were Nicolaas Hartsoeker, Anton Leeuwenhoek, and Wilhelm Gottfried Liebniz.en_US
dc.format.mediumtext/xhtmlen_US
dc.language.isoengen_US
dc.publisherArizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia.en_US
dc.relation.ispartofEmbryo Project Encyclopediaen_US
dc.rights© Arizona Board of Regentsen_US
dc.subjectConcepten_US
dc.subject.meshSpermatozoaen_US
dc.titleSpermismen_US
dc.typeTexten_US
dc.rights.licenseLicensed as Creative Commons Attribution-NonCommercial-Share Alike 3.0 Unported (CC BY-NC-SA 3.0) http://creativecommons.org/licenses/by-nc-sa/3.0/
dc.subject.embryoTheoriesen_US
dc.subject.tagPreformationismen_US
dc.subject.tagSpermen_US
dc.subject.tagOvaen_US
dc.description.typeArticlesen_US
dc.date.createdstandard2008-08-13


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