B1 - nervous system 0.0 / 5 ? BiologyNervous system, hormones and behaviourGCSEAQA Created by: Ashley11330077Created on: 26-03-16 16:59 9723615108 Across 1. A junction between to neurons which electrical signals must pass across (7) 2. Automatic response that bypases the CNS (6, 3) 6. A drug which stops impulses passing across a synapse, causing paralysis (6) 8. A type of neuron that sends impulses from the receptors to the brain. (7) 10. A change in the environment (7) Down 2. an organ or cell able to respond to light, heat, or other external stimulus and transmit a signal (9) 3. A drug which stimulates a synapse to repeat impulses crossing synapses, causing spasms of constriction (9) 5. muscle or glands that react to stimuli (9) 7. connect the sensory and motor neurones (5) 9. A chemical messenger (7)
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