Answer :
Final answer:
The human nervous system is divided into two main divisions: the Central Nervous System (CNS), comprising the brain and spinal cord, and the Peripheral Nervous System (PNS), which includes all other nerves in the body. The PNS is further subdivided into autonomic (involuntary actions) and somatic (voluntary actions) nervous systems. Therefore, the correct option is b. central and peripheral
Explanation:
The human nervous system is an intricate and complex network responsible for sending signals throughout the body to coordinate actions and sensory information. It is fundamentally divided into two main divisions: the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).
The CNS is comprised of the brain and spinal cord. It acts as the control center for the body, processing information, and making decisions. The PNS, on the other hand, consists of all the nerves that branch out from the brain and spinal cord to the rest of the body. The PNS is further divided into the autonomic and somatic nervous systems, responsible for involuntary and voluntary actions, respectively. The autonomic system is subdivided into the sympathetic and parasympathetic systems, which work together to maintain the body's homeostasis.
This dichotomy between the CNS and PNS is crucial for understanding how the nervous system functions, enabling the coordination and execution of complex behaviors and physiological processes.
