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by Anonymous on April 1st, 2007

Anonymous

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A stimulus traveling toward a synapse appears to open calcium channels at the presynaptic end, which in turn promotes fusion o f synaptic vesicles to the axonal membrane T or F, if false why? thanks for your time.

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  • by Ribonto EA Doudou on April 18th, 2007

    Ribonto EA Doudou

    The answer is FALSE.This is because when the impuse transmssion reach to the axon,the synaptic vessicles open up to release the chemicals that is electrical message,which when they get in the axon the activation of the Na and K ions takes place and these two are the essential message transmiter when they move by exchanging their possitions i.e when K inside Na outside and vice vaser until the message reach to the end of the axon! NOT THE VESSICLES PASSING INTO THE AXON MEMBRANE.

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