the central nervous system- spinal cord: relays information between the brain and the rest of the body, this then allows the brain to monitor and regulate body processes like digestion and breathing, also coordinates voluntary movements. it is connected to different parts of the body by pairs of spinal nerves which connects them to specific glands and muscles.
brain: the brain can be further divided into 4 areas: the cerebellum, cerebrum, diencephalon and brain stem. the cerebrum is the largest part and is split into 4 lobes which all have their own functions. the cerebellum controls a persons motor skills and balance, coordinating the muscles to allow precise movements. the diecephalon is split into two the thalamus and the hypothamlus, the thalamus acts as a relay station for nerve impulses coming from senses, routing them to the appropriate part of the brain. the hypothamlus can regulate body temperature, hunger and thirst, as well as also linking with the endocrine system. the brainstem is responsible for regulating the automatic functions that are essential for life, for example, breathing swallowing and heartbeat.