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Psych Mod 4 Vocal
| Question | Answer |
|---|---|
| A nerve cell; the basic building block of the nervous system: | Neuron |
| The branching extensions of a neuron that receive information and conduct impulses toward the cell body (soma) | Dendrite |
| The extension of a neuron through which neural impulses are sent | Axon |
| The end point of a neuron where neurotransmitters are stored | Axon Terminal |
| A neural impulse; a brief electrical charge that travels down the axon of a neuron (flushing the toilet) | Action Potential |
| The state of a neuron when it is at rest and capable of generating an action potential (toilet tank has refilled and is ready to be flushed again) | Resting Potential |
| The principle stating that if a neuron fires, then it always fires at the same intensity; all action potentials have the same strength (eg. Toilet always flushes with the same intensity, no matter how hard you push the handle) | All-or-None Principle |
| The tiny flue-filled gap between the axon terminal of one neuron and the dendrite of another | Synapse |
| A chemical messenger that travels across the synapse from one neuron to the next and influences whether a neuron will generate an action potential. | Neurotransmitter |
| A neurotransmitter effect that makes it more likely that the receiving neuron will generate an action potential, or "fire" | Excitatory Effect |
| A neurotransmitter effect that makes it less likely that a receiving neuron will generate an action potential or "fire" | Inhibitory Effect |
| Specialized cells in every sensory system of the body that can turn other kinds of energy into action potentials (neural impulses) that the brain can process. | Receptor Cells |
| Nerves that carry information from the sense receptors to the spinal cord and brain | Sensory Nerves |
| Nerve cells in the brain and spinal cord responsible for processing information | Interneurons |
Created by:
Traceyshea