BSIP, JOUBERT / SCIENCE PHOTO LIBRARY BSIP, JOUBERT / SCIENCE PHOTO LIBRARY
Nerve synapse. Computer artwork of a synapse, the junction between two nerve cells. When an electrical signal reaches a synapse, it causes synaptic vesicles (dark pink balls) at the end of the neuron to burst. These release neurotransmitter chemicals (small blue balls) across the gap to the next nerve cell. These bind to the second neuron, causing the propagation of an electrical signal along it. Each nerve cell in the body communicates with many others at synapses such as this. The oval blue bodies in the nerve cell are mitochondria, which produce energy for the cell.
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