What nerves monitor the body and internal and external conditions?

The peripheral nervous system, particularly the sensory nerves, monitors the body's internal and external conditions. These nerves include afferent fibers that transmit sensory information from receptors in the skin, muscles, and organs to the central nervous system. Additionally, autonomic nerves help regulate internal conditions by conveying information about the body’s physiological state, such as heart rate and digestion. Together, they ensure the body can respond appropriately to various stimuli.