Sensory structures are specialized organs or cells that detect and respond to various stimuli from the environment. These structures are essential for the senses, including sight, hearing, taste, smell, and touch. Each sensory structure is designed to convert specific types of stimuli, such as light, sound waves, or chemical signals, into electrical signals that the brain can interpret. In humans, sensory structures include the eyes for vision, ears for hearing, tongue for taste, nose for smell, and skin for touch. These structures work together to help individuals perceive their surroundings, enabling them to react appropriately to different situations and experiences.