Synapses
- Created by: bronteappleby
- Created on: 01-05-14 09:30
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- Synapses
- How They Work
- 1. An Electrical Impulse travels along an AXON
- 2. This triggers a nerve ending of a neuron to release chemical messengers called NEURO TRANSMITTERS
- 3. The chemicals diffuse across the Synapse
- 4. They then bind with receptor molecules on the membrane of the next neuron
- 5.The receptor molecules on the second neuron bind only to the specific chemicals released from the first neuron.
- 6. This stimulates the second neuron to transmit the electrical impulse
- Drugs
- Some drugs stop the impulse from passing across the Synapse
- Prozac: Anti-depressant that causes Serotonin to build up in Synapses, blocks the re-uptake of Serotonin in the Synapses
- Beta Blockers: blocking the receptor sites on heart muscle cells so impulses from nerves which would speed up the heart are prevented from passing to the heart.
- Serotonin is a chemical released by the Brain which stimulates pleasure
- Ectasy: Blocks the Serotonin receptors in the brain, prevents it from being absorbed by receptor molecules - serotonin increase, the individual becomes happier
- How They Work
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