One level back to Sensitivity 2.3.3.1.2.1.2. Nerves 2.3.3.1.2.1.2.1. Brain 2.3.3.1.2.1.2.2. Spinal cord One level further to Brain One level further to Spinal cord
One level back to Sensitivity 2.3.3.1.2.1.2. Nerves One level further to Brain One level further to Spinal cord Brain Brain 2.3.3.1.2.1.2.1. Brain Spinal cord Spinal cord 2.3.3.1.2.1.2.2. Spinal cord

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