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Refractory period returns the repolarization period to the nerve's resting potential . it's the time taken for recovery of a neuron to generate another impulse being excited by another stimulus . so if nerve doesn't have refractory period they wouldn't be able to return to its resting potential & generate new impulse . moreover the repolarization ...


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The terminology can be confusing, and I suspect the question you meant to ask was: what is the difference between the neural tube and dorsal nerve cord? In vertebrates, the neural tube and the dorsal nerve cord are two names for the same structure. It develops into the brain and spinal cord. Neurulation occurs during the early embryogenesis of ...


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The neural tube (Fig. 1) is the embryo's precursor to the central nervous system, which comprises the brain and spinal cord. Its structure can be described in standard anatomical terms of location and their respective axes. The dorsal - ventral axis (back to abdominal side) can be visualized by dissecting the neural tube transversely (Fig. 2). This axis is ...


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Recent nature neuroscience review on bipolar cells says that bipolar cells are classified into 13 (12 cone bipolar + 1 rod bipolar) different types. Depending on the polarity of their light response, bipolar cells can be grouped into ON and OFF cells. Answering your question, what are on bipolar cells used for ? ON bipolar cells predominantly depolarize ...



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