Which statement is true about neurons?

Which statement is true about neurons?

• A. They are non-mitotic
• B. They conduct impulses
• C. They do not require high metabolic rate
• D. They are only found in the CNS

Answer: (B)

Neurons are excitable nerve cells whose defining role is to transmit information by electrical signals. They conduct impulses by generating action potentials that travel along the axon and trigger neurotransmitter release at synapses, enabling rapid communication throughout the nervous system. This signaling relies on maintaining ion gradients, powered by energy-intensive pumps, so neurons have a high metabolic rate. They are found in both the central and peripheral nervous systems, not just the brain and spinal cord. While neurons are generally regarded as post-mitotic after development, the key feature asked here—their ability to conduct impulses—captures their essential function.

Neurons are excitable nerve cells whose defining role is to transmit information by electrical signals. They conduct impulses by generating action potentials that travel along the axon and trigger neurotransmitter release at synapses, enabling rapid communication throughout the nervous system. This signaling relies on maintaining ion gradients, powered by energy-intensive pumps, so neurons have a high metabolic rate. They are found in both the central and peripheral nervous systems, not just the brain and spinal cord. While neurons are generally regarded as post-mitotic after development, the key feature asked here—their ability to conduct impulses—captures their essential function.