Neuro System Embryology 1 Flashcards
What germ layer forms the central and peripheral nervous system?
Ectoderm
What happens after anteroposterior invagination of the neural placode?
The lateral ends fold to form the neural tube
Once the neural tube has formed, what happens next?
Neuroepithelial cells proliferate resulting in neuroblasts
After neuroepithelial cells proliferate resulting in neuroblasts, what do the cells do?
They migrate to mature sites in order to establish synaptic connections and extend axons to target tissue
What do the neural crest and neural tube eventually become?
The neural crest differentiates into the majority of the pns and ans, consisting of the cranial, spinal, and autonomic ganglia.
The neural tube differentiates into the CNS, consisting of the brain and the spinal cord.
What are astrocytes and ependymal cells formed from?
Radial glial cells
What cells differentiate into microglial cells?
Mesenchymal cells
The primordial meninx eventually becomes what structure?
The spinal meninges
