Biology 0.0 / 5 ? ScienceBiologyGCSEAQA Created by: louiscasimCreated on: 19-02-15 19:20 describe what neurons do when they are stimulated? Transmit an impulse 1 of 7 Some axons are surrounded by: A fatty sheath 2 of 7 what is not a job of the fatty sheath? The fatty sheath does not connect two neurons together. 3 of 7 describe a synapse? A synapse is a gap between two neurons. 4 of 7 A stimulus can be caused by: A stimulus can be caused by a change in the environment. 5 of 7 what sequence best describes the pathway of a reflex arc? The best description of the pathway of a reflex arc is receptor - sensory neuron - spinal cord - motor neuron - effector. 6 of 7 Drugs affect our nervous system by changing the transmission of impulses: Across synapses 7 of 7
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