What is the primary function of the axon in a neuron?

• A. To synthesize neurotransmitters
• B. To receive incoming signals from other neurons
• C. To provide structural support to the neuron
• D. To transmit electrical impulses away from the cell body toward other neurons or effectors

Answer: (D)

Verified step by step guidance

1. Step 1: Understand the structure of a neuron. A neuron consists of three main parts: the cell body (soma), dendrites, and axon. Each part has a specific function.
2. Step 2: Learn the role of the axon. The axon is a long, slender projection of the neuron that is specialized for transmitting electrical impulses (action potentials) away from the cell body.
3. Step 3: Compare the axon's function to the other options provided. For example, neurotransmitter synthesis occurs in the cell body, not the axon. Receiving signals is the function of dendrites, and structural support is provided by the cytoskeleton, not the axon.
4. Step 4: Recognize that the axon's primary function is to transmit electrical impulses to other neurons, muscles, or glands, enabling communication within the nervous system.
5. Step 5: Conclude that the correct answer is: 'To transmit electrical impulses away from the cell body toward other neurons or effectors,' based on the axon's specialized role in neural communication.