Which of the following parts of a neuron work most like a telephone wire that carries information away from a telephone?

• A. Synapse
• B. Dendrites
• C. Soma
• D. Axon

Answer: (D)

Verified step by step guidance

1. Understand the structure of a neuron: Neurons are the basic building blocks of the nervous system, and they have several key parts including the soma (cell body), dendrites, axon, and synapse.
2. Identify the function of each part: The soma contains the nucleus and is responsible for maintaining the cell. Dendrites receive signals from other neurons. The axon carries signals away from the cell body to other neurons, muscles, or glands. The synapse is the gap between neurons where communication occurs.
3. Relate the function to the analogy: A telephone wire carries information from one place to another, similar to how an axon transmits electrical impulses away from the neuron's cell body.
4. Eliminate incorrect options: The synapse is a gap, not a structure that carries information. Dendrites receive information, not transmit it away. The soma is the cell body and does not function like a wire.
5. Conclude with the correct analogy: The axon is the part of the neuron that functions most like a telephone wire, as it carries information away from the neuron.