Which nervous system’s primary role is for involuntary actions?

The autonomic nervous system is primarily responsible for regulating involuntary bodily functions, such as heart rate, digestion, and respiratory rate. This system operates without conscious control, allowing the body to maintain homeostasis and respond to stressors automatically. It is divided into two main branches: the sympathetic and parasympathetic nervous systems, which work together to manage the body's involuntary functions based on the demands of the environment.

The central nervous system, while crucial for processing information and coordinating responses, primarily deals with voluntary actions and higher cognitive functions. The somatic nervous system is responsible for voluntary movements and the transmission of sensory information to the central nervous system. The peripheral nervous system encompasses both the autonomic and somatic systems but does not specifically focus on involuntary actions.