Question

At a chemical synapse, an action potential triggers the presynaptic neuron to release

• A. calcium
• B. potassium
• C. neurotransmitters
• D. electrons

Answer 1

The correct option is C neurotransmitters

Synapse is the point of contact between the terminal branches of an axon of neuron with the dendrites of another neuron separated by a fine gap. At this gap, the nerve impulse jumps into the next neuron. This is sometimes a chemical process. As the impulse reaches the terminal end of an axon (presynaptic neuron), a chemical called neuro transmitter is released. This chemical transmits the action potential to the next neuron.