quiz 5 answer - existing proteins 8.b 9-10. preganglionic...

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1-4. trad. Assumptions 1.) axotomy induces rapid degeneration of distal segments (Not true, invertebrates and lower vertebrates can have distal segments which survive long- term following axotomy), 2.) axotomy removes all trophic support from distal axon segments (Not true- adjacent glia and neurons can also donate proteins) 5-7. adjacent glia, neurons, possible axonal protein synthesis, and slow turnover of
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Unformatted text preview: existing proteins 8.b 9-10. preganglionic fibers from parasympathetic stem from brainstem and sacral spinal cord regions; thoracic and lumbar regions for sympathetic. Parasympathetic ganglia are near the target organs, sympathetic ganglia lie outside the spinal cord in a chain...
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