Responding to Change
- Created by: Annie
- Created on: 27-02-13 18:13
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- Responding to Change
- Nervous System
- Enables you to react with environment and co-ordinate your behaviour
- Impulses
- Electric signals carried along neurons. They mean you can react quickly as they travel FAST.
- Stimuli
- A change in the environment
- Receptors
- Sensory cells which detect change in environment
- Sense Organs
- Group of cells which responds to changes within our surroundings
- Neurons
- Basic cells of nervous system - caries minute electric impulses around the body
- Nerves
- Bundles of of neurons
- CNS
- Brain, Spinal chord.
- Sensory Neurons
- The cells which carry impulses from sense organs to CNS
- Motor Neuron
- Neuron which carries impulses from CNS to effector organs
- Effector Organs
- Muscles and glands which respond to impulses from the nervous system.
- Secreting
- The release of enzymes or hormones
- Nervous System
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