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The ____________ and brain make up the central nervous system. The spinal cord extends through the vertebral canal and is composed of an inner ____________ region and an outer ____________ . The spinal cord contains ____________ in the cervical and lumbar regions, which give rise to nerves that serve the upper and lower limbs.

User James Goooseling
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20 votes

The spinal cord and brain make up the central nervous system. The spinal cord extends through the vertebral canal and is composed of an inner gray matter region and an outer white matter . The spinal cord contains enlargements in the cervical and lumbar regions, which give rise to nerves that serve the upper and lower limbs.

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User Dfan
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