What do the colors on the flag of Norway mean? Credit: Thinkstock Images Stockbyte Getty Images. The Union Jack is composed of the flags of three patron saints layered one over the other. The central red cross on a white field is the flag of St. George, the patron saint of England.
Synaptic vesicles contain thousands of neurotransmitter. The  neurotransmitters are packed into a small membrane bound synaptic  vesicles. There are thousands of neurotransm â¦ itter molecules.
Within a neuron, there are long tubes known as Neurotubules. These carry the synaptic vesicles from the cell body to the synapse (like a factory conveyor belt). When an electrical impulse arrives at the neuron's synapse, the synaptic vesicle fuses with the cell membrane and releases lots of molecules known as Neurotransmitters .