Our sensory organs such as our eves, ears, skin, tongue and nose have receptors which detect stimuli or changes in the environment. they produce electrical messages called nerve impulses. Which are sent to the central nervous system by the cranial nerves or spinal nerves.
The central nervous system will interpret the impulses and decide what to to. It will then transmit impulses to the effector organs such as the muscles and glands to produce a response. Our nervous system is like a computer that gathers, transmits and interprets information.
Our sensory organs produce electrical messages called
nerve impulses.