Unformatted text preview: Synaptic facilitation 5-6. What ions are conducted by NMDA receptors? What is the ion that blocks NMDA receptors extracellular? Ca2+ ions are conducted in addition to Na+ and K+; Mg2+ blocks 7-8. What is polyethylene glycol (PEG)? How has it been used for axonal repair? It is polymer that induces adjacent membranes to flow into one another, causing a fusion of plasma membranes 9-10. What are some common misconceptions about degenerating/regenerating axons? Ex.-Severance of an axon causes a rapid degeneration of the distal segment-All trophic support to axons comes from transport from the perikaryon....
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- Spring '10
- Physiology, #, polyethylene glycol, distal stump