Exocytosis

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Neuron A (transmittin) tae neuron B (receivin)
1. Mitochondrion
2 Synaptic vesicle wi neurotransmitters
3. Autoreceptor
4. Synapse wi neurotransmitter released (serotonin)
5. Postsynaptic receptors activatit bo neurotransmitter (induction o a postsynaptic potential)
6. Calcium channel
7. Exocytosis o a vesicle
8. Recapturt neurotransmitter

Exocytosis is a form o active transport an bulk transport in that a cell transports molecules (e.g., neurotransmitters an proteins) out o the cell (exo- + cytosis) bi expellin them throu an energy-dependent process.