Describe how an action potential is propagated through an axon,
and how neurotransmitters are released in...
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Describe how an action potential is propagated through an axon,and how neurotransmitters are released in response to the actionpotential reaching the synaptic terminal
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Propagation of action potential through axon The axon ofneurons are basically two types myelinated and nonmyelinatedMyelinated axon are covered with myelin sheath and nonmyelinatedfibres are not covered with myelin sheathPropagation through myelinated axon The propagation of actionpotential through myelinated axon is called saltatory conductionbecause the conduction of action potential is leaping around theaxon fibre to reach the axon terminal In resting condition theinner surface of the axon is ve negative charge and outside ofthe axonal membrane is ve positive This is called restingmembrane potential 70 mV When the action potential is arrivedin a portion of axon the Na channels are opened
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