Question 1
Repair of damaged neurons can be assisted by certain neurotrophic factors secreted by the
◦ Schwann cells only.
◦ dendrites only.
◦ axon and dendrites.
◦ cell body only.
◦ axon only.
Question 2
The tip of an embryonic nerve cell's axon is called a
◦ growth cone.
◦ kissing cone.
◦ growth tip.
◦ stem tip.
◦ None of the answers are correct.