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Nervous System
Term | Definition |
---|---|
Stimulus | A change or signal in an organism's surroundings that causes the organism to react |
Response | An action or change in behavior tht occours in reaction to a stimulus. |
Neuron | A cell that carriues information through the nervvous system |
Nerve Impulse | A message carried by a neroun |
Dendrite | A threadlike extension of a neroun that carries nerve impulses toward the cell body |
Axon | A threadlike extension of a neroun that carries nerve impulses away from the cell body |
Nerve | A bundle of nerve fibers |
Sensory Neroun | A neroun that picks up stimuli from the internal or external enviroment and converts each stimulis into a nerve impulse |
Interneroun | A neroun that carries nerve impulses from one neroun to another |
Motor Neroun | A neroun that sends an impulse to a muscle or gland, causing the muscle or gland to react |
Synapse | The junction where one neroun can transfer an impulse to another structure |