What is a key characteristic of neurons?

A key characteristic of neurons is that they possess a cell body and a long process for nerve impulses. This structure allows neurons to effectively carry and transmit electrical signals throughout the nervous system. The cell body contains the nucleus and is responsible for the metabolic activities of the neuron. The long process, known as an axon, is essential for transmitting nerve impulses over long distances to communicate with other neurons, muscles, or glands.

This unique design is critical for the function of the nervous system, enabling rapid communication between different parts of the body and facilitating complex processes such as reflexes, sensory perception, and the coordination of movement. The presence of dendrites, which branch out from the cell body, also plays a significant role in receiving signals from other neurons, further supporting the neuron's ability to transmit information efficiently.