Which term describes the body system involved in processing sensory input from the environment?

• A. Nervous System
• B. Motor System
• C. Endocrine System
• D. Sensory System

Answer: (D)

Processing sensory input from the environment is handled by the sensory system. This system includes the sensory receptors—like those in your skin, eyes, ears, nose, and tongue—that detect changes in the surroundings and convert them into electrical signals. These signals travel through neural pathways to the brain, where they are interpreted to give you perception of sights, sounds, textures, smells, and tastes. The term sensory system specifically describes this set of receptors and neural routes responsible for sensing and conveying environmental information. The other options cover different roles: the motor system governs movement, the endocrine system uses hormones for regulation, and the nervous system is the broader network that includes both sensing and responding, but the term that directly describes processing environmental sensory input is the sensory system.