Peripheral Adaptation involves changes to which of the following?

• A. Nervous System
• B. Muscles
• C. Bones
• D. Skin

Answer: (A)

Peripheral adaptation is about how sensory receptors in the body’s periphery adjust to a constant stimulus by lowering their firing rate. This change happens in the peripheral nervous system—the receptors and their afferent neurons that relay information to the brain. As a result, the input the brain receives diminishes over time, even though the stimulus remains present. That makes the nervous system the best answer. Muscles and bones change structurally with use or loading, not through this kind of sensory signaling adjustment. Skin can host receptors that adapt, but the phenomenon is described at the neural signaling level within the nervous system rather than the tissue itself.