Which tissue carries electrical messages between the brain and the rest of the body?

• A. Epithelial tissue
• B. Nervous tissue
• C. Muscle tissue
• D. Connective tissue

Answer: (B)

Electrical messages between the brain and the body are carried by nervous tissue. Neurons within this tissue generate and conduct electrical impulses that travel along axons to muscles or glands, or relay sensory information back to the brain. Epithelial tissue lines surfaces and forms barriers, muscle tissue mainly contracts in response to signals, and connective tissue provides support—none of these transmit long-distance electrical signals like nervous tissue does.