Final answer:
The somatic and autonomic nervous systems are part of both the peripheral and central nervous systems.
Step-by-step explanation:
The somatic nervous system and the autonomic nervous system are part of both the peripheral nervous system (PNS) and the central nervous system (CNS).
The PNS is responsible for transmitting sensory information from the body to the CNS and motor commands from the CNS to the muscles. The somatic nervous system is involved in conscious perception and voluntary responses using skeletal muscles. The autonomic nervous system controls unconscious functions such as regulating heart rate and digestion.