| | Conditions & Treatments | Brain & Nervous System Is the nervous system divided into three major parts? No, the nervous system is divided into two major parts: the central nervous system (CNS) and the peripheral nervous system (PNS). Brain & Nervous System - Related Articles How to Treat Bell's Palsy What Does Neuropathy of the Foot Feel Like? What are the other name of circulatory system? What does the signal sent from brain down to muscles called? Parts of the Brain With Memory Infrared Therapy for Brain Problems Define Dopamine