Which of the following is a function of the CNS?

• A. Pumping blood
• B. Processing sensory information
• C. Digestion of food
• D. Hormonal regulation

Answer: (B)

The function of processing sensory information is a central role of the central nervous system (CNS). The CNS, which includes the brain and spinal cord, interprets a variety of sensory inputs such as visual, auditory, and tactile stimuli. It integrates this information to help the body respond appropriately to the environment, influencing behaviors and reflexes. By processing sensory information, the CNS allows individuals to perceive their surroundings, make decisions, and interact with the world effectively.

In contrast, the pumping of blood is a function of the heart, which is part of the circulatory system. Digestion of food is primarily managed by the digestive system, involving various organs that break down food and absorb nutrients. Hormonal regulation is overseen by the endocrine system, which involves glands that secrete hormones into the bloodstream to regulate bodily functions. Each of these processes is critical to health but falls outside the specific functions attributed to the CNS.