disease 0.0 / 5 ? ScienceNerves and the nervous systemGCSEAQA Created by: Millie2000Created on: 11-06-15 19:34 what is a stimulus? A change in your enviroment which you may need to react to! e.g. light, sound touch, pain or temperature. 1 of 8 What are receptors? they are in your sense organs and are sensitive to stimulus energy 2 of 8 what does the centeral nevous system do? The CNS is where all the info is sent- it is where the reflexes and actions are coordinated. (brain and spinal cord) 3 of 8 what is a synapse? the connections between two neurones 4 of 8 What is a sensory neurone? they are the nerve cells that carry signals as electrical impulses from receptors to the CNS. 5 of 8 What is a motor neurone? the nerve cells that carry singls from the CNS to the effector (muscle or gland) 6 of 8 What is a relay neurone? The nerve cells that carry signals from sensory neurones to the motor neurones 7 of 8 What are effectors? Known as muscle or glands and they respond to nerve impulses. 8 of 8
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