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7thHuBio-Chap6/Sec1
7th Grade Human Biology Chapter 6 Section 1
| Question | Answer |
|---|---|
| stimulus | any change or signal in the environment that can make an organism react |
| response | what the body does in reaction to a stimulus |
| neurons | cells that carry information through the nervous system |
| nerve impulse | the message that a neuron carries |
| dendrite | carry impulses toward the neuron's cell body |
| axon | carries impulses away fron the cell body |
| sensory neuron | picks up stimuli from the environment and converts the stimuli into a nerve impulse |
| interneuron | a neuron that carries nerve impulses from one neuron to another |
| motor neuron | sends an impulse to a muscle or gland and the muscle or gland reacts in response |
| synapse | the junction where one neuron can transfer an impulse to another structure |