Chapter 6 0.0 / 5 ? BiologyNervous system, hormones and behaviourGCSEAQA Created by: Kirstyburnett9Created on: 07-04-16 15:27 Name THREE external stimuli that affect humans? Light, sound, chemicals, touch, pain, pressure, changes in position, changes in temperature 1 of 11 Name the TWO types of effector found in the body and state how they respond to stimuli? Muscles - contact; Glands - secrete hormones 2 of 11 How are impulses passed across a synapse? A chemical is secreted from a neurone which diffuses to another neurone 3 of 11 What is a reflex action? An automatic, fast response to a stimulus 4 of 11 Which region of the brain is concerned with memory and thought? Cerebral cortex 5 of 11 Why are reflex actions important? They help you to avoid/protect you from danger 6 of 11 Name TWO unconscious processes which are controlled by the medulla? Heartbeat, breathing, movements of the gut 7 of 11 List the stages of the pathway involved in reflex action Stimulus --> receptor --> sensory neurone --> relay neurone --> motor neurone --> effector --> response 8 of 11 What does CNS stand for? Central Nervous System 9 of 11 What is at the junction between two neurones? Synapse 10 of 11 What region of the brain deal with the coordination of muscular activity? Cerebellum 11 of 11
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