3 ms·
Does this same process not work for a severed spinal cord? Or would it just take a prohibitively long time? Or.. can severed spinal cords be repaired now?
by tempestn 7y ago
Does this same process not work for a severed spinal cord? Or would it just take a prohibitively long time? Or.. can severed spinal cords be repaired now?
- hinkley 7y agoI never quite understood this. I mostly remember that it was important to some people to distinguish between the peripheral and central nervous system when discussing how it behaves https://en.m.wikipedia.org/wiki/Neuroregeneration https://en.m.wikipedia.org/wiki/Neuroregeneration has a bit, about the central nervous system being actively hostile to regrowth. It also says I was off about the myelin sheath - it’s the next layer of tissue that surrounds the myelin sheath that survives. The sheath itself also begins to break down post-trauma, apparently.
- isaacgreyed 7y agoNot the most credible evidence, but from some reading long ago I can't find. I think it has to do with the way spines break it damages the nerve endings. If you were to slice the spine with a sufficiently sharp blade I believe they would regrow.