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VTT Nervous system
Amanda's q's
Question | Answer |
---|---|
What provides structural and functional support and protection to neurons? | neuroglia (Glial cells) |
What are 2 names for the central cell body? | Soma or perikaryon |
Neurons cannot reproduce but can regenerate under what circumstances? | if the cell body remains intact |
What part of a neuron receives stimuli? | Dendrites |
What part of a neuron conducts nerve impulses away? | Axon |
What is myelin? | fatty substance |
What is the basic functional unit of the nervous system? | neurons |
What is the myelin sheath? | membrane of glial cells tightly wrapped around the axon |
Which conducts impulses faster? myelinated or unmyelinated axons? | myelinated |
What are oligodendrocytes? | glial cell in the brain and spinal cord |
What are schwann cells ? | glial cells in the nerves outside the brain and spinal cord |
What are the nodes of ranvier? | gaps between adjacent glial cells |
The CNS is made up of what? | brain and spinal cord |
What is the PNS made up of? | extends outward from the central axis |