Neural Transmission Across a Mammalian Synapse Is Accomplished by ________

Multiple Choice

Neural transmission across a mammalian synapse is accomplished by ________.

A) the movement of sodium and potassium ions from the presynaptic neuron into the postsynaptic neuron
B) impulses traveling as electrical currents across the synapse
C) impulses causing the release of a chemical signal and its diffusion across the synapse
D) impulses ricocheting back and forth across the synapse
E) the movement of calcium ions from the presynaptic into the postsynaptic neuron