http://sanitareugen.livejournal.com/ ([identity profile] sanitareugen.livejournal.com) wrote in [community profile] useless_faq 2011-08-29 06:08 am (UTC)

Только у позвоночных, причём не весь.

Спинной мозг - в туловище.
У беспозвоночных, строго говоря, нет мозга, а есть нервные узлы, распределённые по телу.
(66 comments)

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