Regeneration occurs in the mammalian PNS but not the CNS because
A) mammalian CNS neurons are incapable of regeneration.
B) fibrous scar tissue blocks regeneration in the CNS.
C) oligodendroglia do not provide the stimulation and guidance that are provided by Schwann cells.
D) the CNS has no neurotrophins.
E) the CNS has no nerve growth factor.

Question

Quizplus · Accepted Answer

Oligodendroglia in the CNS do not provide the same supportive environment for regeneration as Schwann cells do in the PNS, which includes the lack of growth-promoting factors and physical guidance.

Regeneration Occurs in the Mammalian PNS but Not the CNS