BIO- 351:DEVELOPMENT OF THE PERIPHERAL NERVOUS SYSTEM QUESTIONS AND CORRECT ANSWERS

BIO- 351:DEVELOPMENT OF THE
PERIPHERAL NERVOUS SYSTEM
QUESTIONS AND CORRECT ANSWERS
spinal cord ventral horn - ✔✔neural tube-derived; lower motor neuron bodies



dorsal root ganglia - ✔✔neural crest-derived; sensory neuron bodies



peripheral nerves - ✔✔lower motor and sensory neuron axons/projections



vertebrae - ✔✔mesoderm



dendrites - ✔✔receive signals



axons - ✔✔send action potentials



synaptic communcation - ✔✔



avoids ephrins in the posterior (caudal) somite/sclerotome - ✔✔ventral path neural crest
migration....


sensory neurons - ✔✔at site of nascent dorsal root ganglia, neural crest cells initially
generate....(by neurogenesis)


schwann cells - ✔✔some neural crest migrate into peripheral nerve and make glia, such
as.....(by gliogenesis)


lower motor neurons (ventral neural tube) and DRG sensory neurons (neural crest) -
✔✔peripheral nerves contain axons from.....