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Size of cord segments: 1. The more superior, the more white matter. why is this? 2. grey...

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Medical Sciences

Size of cord segments:

1. The more superior, the more white matter. why is this?

2. grey matter is larger in cervical and lumbar regions. why isthis?

Answer & Explanation Solved by verified expert
3.9 Ratings (612 Votes)
1 White matter consists of myelinated nerve fibers or axons and no dendrites surrounded by myelin which is a white fatty material composed of lipoproteins This acts as an insulator and increases the speed of transmission of all nerve signals Grey    See Answer
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