A2 Biology Little general knowledge of some of the key points 3.5 / 5 based on 3 ratings ? BiologyA2/A-levelAll boards Created by: sasha greenCreated on: 08-12-11 16:49 what is the name of the insulator around nerve cells? myelin sheath 1 of 7 What is the name the gaps in the myelin sheath? nodes of ranvier 2 of 7 why? action potential jumps from node to node 3 of 7 what direction does the impulse travel along a motor neurone dendrites to dendron to cell body to axon to muscle cell 4 of 7 what causes the vessicles in the pre-synaptic knob to merge with the pre-synaptic membrane influx of Ca2+ ions 5 of 7 What is inside the vessicles? neurotransmitters 6 of 7 What happens to the contents of the vessicles after it left the pre-synaptic knob and the action potential has continued along the post-synaptic knob broken down by enzymes 7 of 7
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