Which statement describes nervous tissue?

• A. Found in the brain, spinal cord and nerves; coordinates and controls many body activities.
• B. Major site of energy storage.
• C. Forms the protective outer layer of the body.
• D. Responsible for filtration of blood.

Answer: (A)

Nervous tissue is specialized for rapid communication and control, using neurons to transmit electrical signals and glial cells to support them. It forms the brain, spinal cord, and the network of nerves that connect the brain to every part of the body. Its main function is to coordinate sensations, movements, and internal processes by processing and transmitting information. That combination of location and function makes the statement describing nervous tissue as being found in the brain, spinal cord, and nerves and as coordinating and controlling many body activities the best fit.

Other options point to different tissues: energy storage is primarily the job of adipose tissue; the protective outer layer of the body is the skin, and filtration of blood is mainly carried out by the kidneys.