What is the primary function of axons in a neuron?

The primary function of axons in a neuron is indeed to pass messages to other neurons or muscles. Axons are long, thin fibers that extend from the neuron's cell body and are responsible for transmitting electrical impulses away from the cell body to other neurons, muscles, or glands. This communication process is essential for the functioning of the nervous system, as it enables the relay of information throughout the body, allowing for rapid responses to stimuli and coordination of bodily functions.

The other options focus on different aspects of neuron function. Receiving messages from other neurons is primarily the role of dendrites, not axons. Conducting impulses toward the cell body also pertains more to the dendrites, which bring information into the neuron. Supporting neural health doesn't relate specifically to the function of the axon but rather to the overall maintenance of the neuron, which can involve various supporting cells and factors. Thus, the primary role of the axon lies in its ability to transmit signals, making it crucial for neural communication.