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Anatomy-Nervous Syst
Nervous System
| Question | Answer |
|---|---|
| what are the functions of the nervous system? | 1. recieve information from the receptors 2.process that information 3. effect a response |
| what are the three characteristics of a neuron? | excitability, conductivity, secretion |
| what are the neuron classes? | sensory motor interneuron |
| Parts of the CNS | oligodendrocytes astrocytes ependymal cella microglia |
| oliodendrocytes | produce mylein |
| astrocytes (4) | -most abundant -covers brain surfaces and non-synaptic gray matter neurons -form blood-brain barrier -provide nourishment and growth factors |
| PNS parts | schwann cells satillete cells |
| Schwann Cells | produce myelin, help regenerate damaged fibers, |
| Satellite Cells | Wrap around nerve cell bodies |
| What are some Myelin diseases | MS- disease of myelin sheath |