PSYA01H3 Lecture Notes - Lecture 9: Short Circuit, Myelin, Reuptake
Document Summary
Chemicals are released into synaptic cleft between nerve cells. When depolarization travels all the way down the axon, it causes chemicals to be released. Think electrical wires: they have plastic coatings, increases conduction, electricity travels faster, also stops other wires from affecting the one wire (short, prevents interference from other wires, enhances transmission, keeps everything contained and insulated circuit) This fatty sheath does the same thing: also prevents activity from other neurons from affecting their cell. Caused by inefficient transmission of neuron signals. Or information crossing paths and taking on the wrong neuron. Every drug (whether medicinal or recreational) takes affect in the. After neuron pushes out the neurotransmitter signals, if they do not get taken in by the receptor sites, the original neurotransmitter takes it back in and recycles it in a sense. Some drugs may also affect this process: as a result the neurotransmitter stays out longer than it should.
