You, and all living things need to be able to respond to changes in the environment, these changes are called stimuli.
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Name the two parts of the nervous system?
The central nervous system - the brain and the spinal cord, and the peripheral nervous system - nerves taking information from sense organs into the CNS and from the CNS to effectors.
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What is are voluntary repsonses?
Responses that are voluntary are consciously controlled by the brain.
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Why are reflexes automatic and rapid?
sometimes you need to respond to a potentially dangerous situation quickly, there is no time to think so your brain does not need to be involved.
An insulating sheath prevents impulses leaking away.
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Card 2
Front
Name the two parts of the nervous system?
Back
The central nervous system - the brain and the spinal cord, and the peripheral nervous system - nerves taking information from sense organs into the CNS and from the CNS to effectors.
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