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SBI4U Biology · 11.1
Neural signalling
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Neural signalling
- How an animal responds to a stimulus: reception, transmission, integration, then response.
- Reception: sensory receptors detect the stimulus.
- Transmission: the message moves along a neuron to another neuron, a muscle or a gland.
- Integration: several messages are sorted and interpreted and a suitable response is chosen.
- Response: the output, such as a muscle contracting or a gland secreting.
- Touching a hot stove: skin receptors (reception), afferent neuron (transmission), spinal interneurons (integration), motor neuron and muscle (response).