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psych terms
psych terminology for quiz 3
| Question | Answer |
|---|---|
| Neuron | A nerve cell that transmits information in the brain and nervous system |
| Soma (cell body) | The main part of a neuron containing the nucleus, where cell processes occur |
| Axon | A long, slender projection that carries electrical impulses away from the neuron's cell body |
| Axon terminal | The end part of an axon that makes connections with other neurons or cells |
| Dendrite | Branch-like extensions of a neuron that receive signals from other neurons |
| Synaptic interconnections | The connections formed between neurons at the synapses where they communicate |
| neurotransmitters | Chemicals that transmit signals across a synapse from one neuron to another |
| Resting potential | the electrical charge difference across the membrane of a neuron at rest |
| Action potential | A sudden change in electrical charge that travels down the axon, transmitting a signal to |
| All or None response | The principle that a neuron either fully responds to a stimulus or not at all |
| Absolute refractory period | A short period after an action potential when a neuron cannot fire again |
| Electrical communication | The process by which neurons transmit signals through electrical impulses |
| chemical communication | The process by which neurons communicate through neurotransmitters |
| Receptor sites | The process of neurotransmitters being reabsorbed by the neuron that released them |
| Agonist | increases/excites neurotransmitter activity |
| Antagonists | decreases/inhibits neurotransmitters activity |
Created by:
josie_d
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