Meanwhile a new group has appeared laterally from the dorso-medial 
portion, and medially from the efterent hy poglossus root (LV of fig. 10), 
it becomes stronger and spreads ventro-laterally so that many XI 
bundles pass through it lengthwise ; the dorso-medial portion, originally 
so heavy, has all but disappeared, the ventro-medial turns pronouncedly 
upwards and has so spread on the lateral side as to lose its comma- 
like shape (V of fig. 10). Likewise the portions situated laterally 
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