That is by convention you put it into central nervous system. Tomorrow you can put the brain only in central nervous system and the spinal cord in the peripheral nervous system. This is anatomical classification. Physiologically the nervous system is single unit.
The central nervous system is made up of the brain and spinal cord. The brain is responsible for processing information, while the spinal cord acts as a pathway for transmitting messages between the brain and the rest of the body.
The spinal cord is part of the central nervous system which itself it part of the nervous system.
The central nervous system is composed of the brain and the spinal cord. It is responsible for processing information from the sensory organs, coordinating motor movements, and controlling cognitive functions.
The peripheral nervous system (PNS) resides or extends outside the central nervous system (CNS), which consists of the brain and spinal cord. The main function of the PNS is to connect the CNS to the limbs and organs, while the CNS provides coordination for the rest of the body.
The central nervous system of vertebrates (such as humans) contains the brain, spinal cord, and retina. credit to en.wikipedia.org/wikiNervous_system
The central nervous system
The central nervous system is composed of the brain and spinal cord.
Central nervous system-- The brain and spinal cord.
The central nervous system has two organs, the brain and the spinal cord.
The brain and spinal cord make up the central nervous system, answer A.
The brain and spinal cord collectively form the central nervous system.
Unlike the Peripheral nervous system, the Central Nervous System includes the brain and the spinal chord.
The central nervous system (CNS) and the peripheral nervous system (PNS)
The spinal cord is connected to the brain and is part of the central nervous system.
The central nervous system consists of the brain and the spinal cord
The Central Nervous System.
The central nervous system (composed of the brain and spinal cord) and the peripheral nervous system (composed of the rest).