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Inner ends of spongioblasts with germinal cells, g, between the, spinal chord human embryo. Inner ends of spongioblasts, Sp; a germinal cell (g) and two transitional cells (Tr) form spinal chord of human embryo. Three neuroblasts, each with a nerve fibre process growing out beyond the basement membrane of the embryonic spinal chord. Jones Quain (November, 1796 - January 31, 1865) was an Irish anatomist, professor of Anatomy and Physiology in the University of London, and author of Elements of Anatomy. The first edition was published in 1828 and it quickly became a standard text-book in English-speaking countries.
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