Which system is comprised of cranial and spinal nerves?

The peripheral nervous system is comprised of cranial and spinal nerves. This system plays a crucial role in connecting the central nervous system, which includes the brain and spinal cord, to the limbs and organs. The peripheral nervous system is responsible for transmitting sensory information to the central nervous system and carrying motor commands back to the body's muscles. It includes two main divisions: the somatic nervous system, which controls voluntary movements, and the autonomic nervous system, which governs involuntary actions like heart rate and digestion.

The central nervous system, in contrast, consists solely of the brain and spinal cord, and does not include any nerves. The sympathetic and parasympathetic nervous systems are subdivisions of the autonomic part of the peripheral nervous system, specifically involved in the body's response to stress and relaxation, respectively. However, neither of these divisions encompasses all cranial and spinal nerves, which belong to the broader category of the peripheral nervous system.