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7 Cards in this Set
- Front
- Back
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neural crest cells
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form sensory nerons
Schwann cells enteric and autonomic ganglia mesenchymal cells of the head and anterior portion of the neck melaoncytes of the skin and oral mucosa odontoblasts cells of the arachnoid and pia chromaffin cells of the adrenal medulla |
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neurons
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bipolar: two processes -- one axon and one dendrite (sense organs)
psuedo-unipolar: neuron with 1 process: fused axon and dendrite multipolar: one axon, multiple dendrites interneuron: connects other neurons in a chain/sequence motor neuron: conduct impulses from CNS to other neurons |
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ganglia
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encapuslated aggregations of neuronal cell bodies
autonomic ganglia: motor ganglia in which axons of pregang. neurons synapse w/ postgang craniospinal: sensory ganglia assc with cranial nerves and dorsal roots of spinal nerves DO NOT HAVE SYNAPSES |
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anencephaly
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failure of anterior neuropore to close
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Hirschsprung disease
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abnormal organogenesis; neural crest fail to migrate and form mysenteric plexus
leads to enlarged colon |
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neuroglial tumors
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50% intercranial tumors (benign oligodendrogliomas to malignant astocytomas)
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Huntington chorea
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fatal hereditary disease
dementia, death; loss of neurons that produce GABA |
