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Questions and Answers
Which part of the nervous system first arose in wormlike organisms about 550 to 600 million years ago?
Which part of the nervous system first arose in wormlike organisms about 550 to 600 million years ago?
- Peripheral nervous system (PNS) (correct)
- Autonomic nervous system
- Somatic nervous system
- Central nervous system (CNS)
What are the nerves that transmit signals from the brain called?
What are the nerves that transmit signals from the brain called?
- Spinal nerves
- Mixed nerves
- Sensory nerves
- Motor nerves (correct)
Which subsystem of the peripheral nervous system mediates voluntary movement?
Which subsystem of the peripheral nervous system mediates voluntary movement?
- Enteric nervous system
- Autonomic nervous system
- Somatic nervous system (correct)
- Sympathetic nervous system
In vertebrates, what does the central nervous system (CNS) consist of?
In vertebrates, what does the central nervous system (CNS) consist of?
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When is the sympathetic nervous system activated?
When is the sympathetic nervous system activated?
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