Final answer:
The autonomic nervous system, part of the peripheral nervous system, subdivides into the sympathetic and parasympathetic systems, controlling involuntary bodily functions.
Step-by-step explanation:
The nervous system that can be further subdivided into the sympathetic and parasympathetic systems is known as the autonomic nervous system. It's one of the two main components of the peripheral nervous system, the other being the somatic nervous system. The autonomic nervous system regulates involuntary functions of the body and consists of the two subdivisions mentioned: the sympathetic nervous system prepares the body for 'fight-or-flight' responses during stressful situations, while the parasympathetic nervous system is responsible for 'rest and digest' functions during periods of rest.
The autonomic nervous system can be subdivided into the sympathetic and parasympathetic systems.