Descrição

As a consequence of the relative inequality in the rates of growth of the medulla spinalis and vertebral column, the nerve roots, which in the early embryo passed transversely outward to reach their respective intervertebral foramina, become more and more oblique in direction from above downward, so that the lumbar and sacral nerves descend almost vertically to reach their points of exit. From the appearance these nerves present at their attachment to the medulla spinalis and from their great length they are collectively termed the cauda equina.


This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
Esta definição inclui textos do site wikipedia – Wikipedia: enciclopédia libre (22 de julho de 2004). FL: Wikimedia Foundation, Inc. Recuperado no dia 10 de agosto de 2004, de http://www.wikipedia.org

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