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Name the first and last element in perio...

Name the first and last element in period 2

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Lithium and neon
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Knowledge Check

  • Which of the following are the first and last elements in a spinal reflex?

    A
    Axon and dendrite
    B
    Sense organ and muscle effector
    C
    Ventral horn and dorsal horn
    D
    Motor neuron and sensory neuron

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