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coud uMammalia
9.9.9. po Ping rough spinas cord ol onyeklagug !
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) ?.s. dossing through spinal cmd shovor hod he spina) evd hao tr proteckiue layerr ie, oulr duronmaer" "midle-chanid tayer " ?nnen - iomaker.
Cii) he Rn ir norvous tierte can de distiney idenhgia ble ino while mouHer Svrrourding H- shopd gy mater ir 9he "cwhik moa ter locka nemve cyon "buk is hieh in nene A6, wbie He "rty malter cenis 4 nouron cyon" cio Phe cenhas ngion is hallouw and èaled cenhal eanal.gitk with Cenebroepinas !lurd. y heir or projevars gey mater Caved dorta/ vena oms whieh penehaka od'eep in whik nar, fo& ming hararlonit4e Ashope buhrsty shape % 2t, 6pinad eond. vhobras ond venhal ypkn peneheles into whik malw to orm epkum. ul ohur shy ehes can de sen art 8lood vwne, senry and mar neuron A.
