2.87: Understand that the Central Nervous System consists of the Brain and Spinal Cord and is Linked to Sense Organs by Nerves

CENTRAL NERVOUS SYSTEM: Nervous system comprising the Brain and Spinal Cord that is linked to a network of nerve cells that carry impulses around the body

CENTRAL NERVOUS SYSTEM

Diagram showing the Central Nervous System

PROCESS: Central Nervous System (CNS) determines the response for a stimulus detected by the receptor Stimuli is detected by receptors, stimulating Sensory Neurons that send electrical impulses to the Central Nervous System - Brain and Spinal cord Central Nervous System relays impulse across the synpase (gaps between Neurones) to Relay Neurons via synaptic transmission Relay Neurons relays impulse to Motor Neurons in the Effector, which will quickly carry out rapid response