Nervous system divisions?
CNS and PNS
Neuron — definition?
Basic functional unit transmitting signals.
Neuron structure?
Cell body, dendrites, axon, myelin sheath
CNS — components?
Brain and spinal cord.
Neuron types?
Sensory, motor, interneurons
Myelin Sheath — role?
Insulates axons, speeds signals.
Gray Matter — location?
CNS regions with neuron cell bodies.
Peripheral Nervous System — includes?
Sensory and motor neurons outside CNS.
Neuron types — examples?
Sensory, motor, interneurons.
Synaptic transmission — process?
Chemical signals across synapses.
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1. What is the term for the part of the nervous system that includes the brain and spinal cord?
2. What is the primary function of the myelin sheath in neurons?
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