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

question 41

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.

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