The adult human brain is estimated to contain from 1014 to 5 × 1014 (100–500 trillion) synapses. Every cubic millimeter of cerebral cortex contains roughly a billion of them.
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THE BRAIN FROM TOP TO BOTTOM - 0 views
Neurotransmitters - Chemistry Encyclopedia - structure, proteins, molecule, General Mec... - 0 views
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Neurotransmitters are formed in a presynaptic neuron and stored in small membrane-bound sacks, called vesicles , inside this neuron. When this neuron is activated, these intracellular vesicles fuse with the cell membrane and release their contents into the synapse, a process called exocytosis.
NIMH · Brain Basics - 1 views
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