What are the primary components of the sensory system?

The primary components of the sensory system are indeed the eyes, ears, and nose. Each of these organs is responsible for the reception of different types of sensory information. The eyes are specialized to detect light and allow for vision, while the ears are crucial for hearing and maintaining balance. The nose is key for the sense of smell. Together, these sensory organs play a vital role in how we perceive and interact with the environment around us.

The other choices consist of components that are not specific to the sensory system. For instance, the brain, nerves, and spine are indeed essential for processing sensory information, but they are not the sensory organs themselves. Muscles, tendons, and ligaments are components of the musculoskeletal system, involved in movement rather than sensory perception. Similarly, the heart, lungs, and vessels are part of the cardiovascular and respiratory systems, which handle circulation and respiration, not sensory functions.