Which system consists of cranial and spinal nerves?

The correct answer identifies the Peripheral Nervous System (PNS), which is essential for understanding how the nervous system operates. The PNS consists of all the nerves that branch out from the brain and spinal cord, including the cranial nerves (which emerge directly from the brain) and the spinal nerves (which emerge from the spinal cord).

The PNS connects the central nervous system (CNS) to the limbs and organs, facilitating communication between the CNS and the body. This system plays a critical role in transmitting sensory information to the CNS and conveying motor commands from the CNS to the muscles. Its two major subdivisions, the somatic nervous system (responsible for voluntary control of movements) and the autonomic nervous system (involved in involuntary control of bodily functions), underscore its comprehensive nature.

Understanding this structure is vital for nursing professionals, as it directly influences how the body responds to stimuli and maintains homeostasis.