Question

1,Suppose axon A enters a ganglion(Cluster of neurons) and axon B leaves on the other side. Shortly after an

experimenter stimulatesA, an impulse travel down B. We want to know whether B is just an extension of Axon A or whether A formed an excitatory synapse on some neuron in the ganglion, whose axon is axon B. How could an experimenter determine the answer? Try to think of more than one good method. Presume that the anatomy within the ganglion is so complex that you cannot simply observe the course of an axon through it.

2.If incoming serotonin axons were destroyed, LSD would still have its full effects. However, if incoming dopamine axons were destroyed, amphetamine and cocaine would lose their effects. Explain the difference.

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