In PNS Nerve Fiber Regeneration,how Is a Growing Axon Directed

Multiple Choice

In PNS nerve fiber regeneration,how is a growing axon directed to its original destination?

A) It grows within a regeneration tube.
B) The axonal terminals grow towards the neurosoma until the two severed fragments are reunited.
C) The axon grows a collateral that is directed by growth factors secreted by the postsynaptic neuron.
D) Injured Schwann cells produce a trail of prostaglandins to the original destination.