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caelum19  ·  3350 days ago  ·  link  ·    ·  parent  ·  post: Pubski: September 30, 2015

Ah, don't worry about it. Now I've learned two things!

you say

    transport of proteins up and down nerves

I didn't even know nerves had an 'up' or 'down'. Would this refer to being 'closer' or further from the brian(Going to keep that typo) or what?