What is (a) The brain and spinal cord; the cerebro-spinal axis; the neuron. Sometimes abbreviated to myelencephal. (b) The metencephalon. Huxley called?

myelencephalon — (a) The brain and spinal cord; the cerebro-spinal axis; the neuron. Sometimes abbreviated to myelencephal. (b) The metencephalon. Huxley. (Webster's 1913.)

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