Motor Neurons - Nervous About Immunity
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4 Terms
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What is the function of motor neurons?
Carry nerve impulses from the CNS to muscles or glands (effectors).
2
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Describe the structure of a motor neuron.
Dendrites: Receive impulses
Cell body: Contains nucleus
Axon: Transmits impulse
Myelin sheath: Insulates axon, speeds transmission
Axon terminals: Pass impulse to effector
3
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What is an example of a motor neuron function in a reflex?
In a withdrawal reflex, the motor neuron tells arm muscles to contract and pull away from a hot surface.
4
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What is the role of a motor neuron in a reflex arc?
Receives signals from the interneuron and sends the impulse to the effector for immediate action.
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