Which component conducts electrical impulses away from the neuron's cell body?

Which component conducts electrical impulses away from the neuron's cell body?

• A. Dendrite
• B. Axon
• C. Synapse
• D. Myelin

Answer: (B)

Electrical messages travel through a neuron along a single long projection, starting near the cell body and moving outward to communicate with other cells. The structure that carries this signal away from the cell body is the axon. It begins at the axon hillock, conducts the action potential along its length, and ends at synapses where it can transmit signals to the next neuron or target cell. Dendrites, on the other hand, receive incoming signals and channel them toward the cell body; they don’t carry impulses away. Myelin sheaths speed up the signal along the axon but don’t determine its direction, and the synapse is the contact point where signals are passed to the next cell, not the pathway inside the neuron. So, the component that conducts electrical impulses away from the neuron's cell body is the axon.

Electrical messages travel through a neuron along a single long projection, starting near the cell body and moving outward to communicate with other cells. The structure that carries this signal away from the cell body is the axon. It begins at the axon hillock, conducts the action potential along its length, and ends at synapses where it can transmit signals to the next neuron or target cell. Dendrites, on the other hand, receive incoming signals and channel them toward the cell body; they don’t carry impulses away. Myelin sheaths speed up the signal along the axon but don’t determine its direction, and the synapse is the contact point where signals are passed to the next cell, not the pathway inside the neuron. So, the component that conducts electrical impulses away from the neuron's cell body is the axon.