Biology-B5-Synapses and Reflexes 0.0 / 5 ? BiologyNervous system, hormones and behaviourGCSEAQA Created by: tonisha_Created on: 28-12-22 15:48 A synapse connects two what? neurones 1 of 21 A synapse is basically the _____ between 2 neurones? gap 2 of 21 How are the nerve signals/impulses transferred? a chemical is released which diffuses across the gap 3 of 21 RELFEXES ------------------ Reflexes are rapid _______ responses that dont involve the ______ _____ of the ______? rapid automatic responses that dont involve the conscious part of the brain 4 of 21 This reduces the chance? of getting injured 5 of 21 The passage of information in a reflex is called what? the reflex arc 6 of 21 WHAT HAPPENS WHEN YOU TOUCH A HOT OBJECT ---------------------------- Firstly a ________ is detected by a _______? stimulus detected by a receptor 7 of 21 In this case, what is the stimulus and receptor? s=heat r=skin 8 of 21 An electrical impulse is then sent along what neurone and to where? sensory neurone to the CNS 9 of 21 Where specifically in the CNS? Spinal cord 10 of 21 In the CNS at the end of the sensory neurone there is a junction called what? a synapse 11 of 21 Here, what is released? a chemical 12 of 21 And the chemical will what? diffuse across the gap 13 of 21 Causing the impulse to be sent along what neurone? relay 14 of 21 The electrical impulse then travels along the relay neurone until it reaches? another synapse 15 of 21 Here? a chemical is released 16 of 21 And the impulse is sent along what neurone? motor 17 of 21 The motor neurone takes the impulse to where? an effector 18 of 21 In this case what is the effector? a muscle 19 of 21 Here the muscle will ______ causing the hand to what? contract causing the hand to move away from the object 20 of 21 This is called the? response 21 of 21
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