Which nerves transmit messages from the brain and spinal cord to all other parts of the body?

• A. Sensory nerves
• B. Motor nerves
• C. Autonomic nerves
• D. Interneurons

Answer: (B)

Messages from the brain and spinal cord to the rest of the body are carried by motor nerves. These nerves transmit efferent signals that command muscles to move and respond, supporting voluntary actions and coordinated activity. Sensory nerves do the opposite, carrying information from the body to the central nervous system. Interneurons operate within the brain and spinal cord to process and relay information, not to the body’s muscles. Autonomic nerves handle involuntary functions like heart rate and digestion, rather than direct voluntary muscle control. So, the path that sends commands from the CNS out to the body's tissues is motor nerves.