Question

What happens when the impulse reaches the axon terminals?

a. The impulse reverses direction and travels back to the cell body.
b. The vesicles in the axon terminals fuse together.
c. The vesicles in the axon terminals open and neurotransmitters enter the synaptic gap.
d. The vesicles absorb neurotransmitters.

Answer 1

When the impulse reaches the axon terminals, the vesicles in the axon terminals open and neurotransmitters enter the synaptic gap, allowing the nerve impulse to travel through the receiving neuron.

Step-by-step explanation:

When the impulse reaches the axon terminals, the vesicles in the axon terminals open and neurotransmitters enter the synaptic gap. These neurotransmitters travel across the synaptic cleft and bind to receptors on the dendrites of the next neuron. This binding allows the nerve impulse to travel through the receiving neuron.