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Permban montage💔 | Freakyville Prison

Future Biotechnology on Instagram: "The human brain contains around 100 billion neurons. These specialized cells don’t work alone—they communicate through tiny gaps called synapses. A synapse is where the end of one neuron comes very close to the next, separated only by a narrow space known as the synaptic cleft. When an electrical signal, or action potential, travels down a neuron and reaches the synapse, it can’t jump across directly. Instead, it triggers the release of chemical messengers cal