What is one of the primary functions of sensory systems in the human body?

One of the primary functions of sensory systems in the human body is to provide information about external surroundings. Sensory systems, such as vision, hearing, touch, taste, and smell, are integral in helping individuals perceive and interpret stimuli from their environment. This information is critical for interacting with the world, allowing us to react appropriately to various situations, such as avoiding danger, enjoying pleasurable experiences, and communicating effectively with others.

The other options, while important functions of the body, are not the primary purpose of sensory systems. Increasing physical strength relates more to muscle and fitness systems, regulating body temperature involves homeostatic mechanisms like sweating and shivering, and digesting food effectively pertains to the digestive system's functions. These processes are supported by the sensory system but do not represent its primary role.