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by blonderw on September 28th, 2008

blonderw

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Why are the thoracic and sacral curves known as primary curvatures of the spine?

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  • by Roger the RoflMaster on February 25th, 2009

    Roger the RoflMaster

    Because during birth, the fetal develops the thoracic and sacrum in the same position we are in now. When the newborn raises its head upright, that is a secondary curvature, to the cervical vertebrae.When the newborn stands upright, the lumbar vertebrae changes too.

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  • by Regina on October 4th, 2008

    Regina

    http://www.mreroh.com/student/anatomylinks/ADAMbeyond/Skeletal%20System.htm


    some of the questions i've been trying to answer, i have found them here

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