What system is comprised of the brain and spinal cord and serves as the control center of the body?

The central nervous system is comprised of the brain and spinal cord and acts as the control center of the body. It is responsible for processing information, integrating sensory input, and coordinating responses. The brain interprets information received from various sensory organs and makes decisions regarding bodily responses, while the spinal cord serves as a crucial pathway for transmitting signals between the brain and the rest of the body.

The peripheral nervous system, in contrast, includes all the nerves outside the central nervous system and is involved in connecting the central nervous system to limbs and organs, allowing for communication throughout the body. The autonomic nervous system, which is a subset of the peripheral nervous system, regulates involuntary physiological functions such as heart rate and digestion. The somatic nervous system, also part of the peripheral system, is responsible for voluntary movements and communication between the CNS and skeletal muscles. Thus, the central nervous system's unique structure and function make it the fundamental control center of the body.