Go to National Library of New Zealand Te Puna Mātauranga o Aotearoa
Volume 75, 1945-46
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– 422 –

11. Nervous System.

  • Cuenot stated that the nervous system arises through the inturning of gutters of ectoderm from the ventral surface of the arms.

  • Russo, on the other hand, stated that the nervous system takes its origin from “four yellow cells” seen by him in an unstained living embryo on either side of the stomodaeum.

– 423 –
1892.

MacBride pointed out the improbability of Cuenot's account, in view of the fact that the nervous system is already deep-seated before any arms are developed. He himself, however, did not offer any alternative account.
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