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What is the function of the nervous system in animals?
What is the function of the nervous system in animals?
The nervous system coordinates actions and sensory information by transmitting signals to and from different parts of the body.
When did nervous tissue first arise in organisms?
When did nervous tissue first arise in organisms?
Nervous tissue first arose in wormlike organisms about 550 to 600 million years ago.
What are the two main parts of the vertebrate nervous system?
What are the two main parts of the vertebrate nervous system?
The central nervous system (CNS) and the peripheral nervous system (PNS).
What does the peripheral nervous system consist mainly of?
What does the peripheral nervous system consist mainly of?
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What are the nerves called that transmit signals from the brain?
What are the nerves called that transmit signals from the brain?
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