Question

Neural transmission across a mammalian synaptic gap 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 gap
• C. impulses causing the release of a chemical signal and its diffusion across the gap
• D. the movement of calcium ions from the presynaptic into the postsynaptic neuron

Answer 1

Answer: (C)

Correct answer is (c) impulses causing the release of a chemical signal and its diffusion across the gap