Which of the following is a function of nervous tissue?

• A. Covers body surfaces
• B. Provides movement
• C. Transmits electrical impulses for rapid internal communication
• D. Protects organs

Answer: (C)

The main idea is that nervous tissue is built for signaling and rapid internal communication. Neurons and glial cells generate and propagate electrical impulses (action potentials) and release neurotransmitters to talk with other neurons, muscles, and glands. This electrical signaling lets the nervous system process information quickly, coordinate responses, and regulate many body functions. In contrast, other tissues have different primary roles—epithelial tissue covers and lines surfaces, muscular tissue contracts to produce movement, and connective tissue provides support, protection, or transport. So transmitting electrical impulses for rapid internal communication is the function that defines nervous tissue.