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8 Cards in this Set
- Front
- Back
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what is the nervous system need for |
to help to coordinate and control the body |
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what is a receptor for |
an organor body part that detects a change (stimulus) in the surroundings |
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complete the following table, identifying the stimuli for each detector |
receptor stimuli eyes light ears sound skin touch/pressure/pain tongue taste nose smell |
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what is a neurone |
a specialised cell in the nervous system |
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complete the table |
neurone function sensor send impulses from rceptors in the sense organs to the CNS relay the link sensory and motor neurone motor send impulses from the CNS to muscles and glands CNS= central nervous system |
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describe what happens in a reflex arc |
automatic responses to a stimulus can bypass the CNS |
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parts |
A- receptor= reacts to a stimulus B- sensory neuron= carries on the message to the coordiator/CNS C- relay neuron = gaps between neuron called synapses D- motor neuron= carries messageaway from CNS E- effector= a muscle or a gland. |
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how does the nervous system transmit information in the body |
via electric signals/impulses. |
