I was curious if single neurons have the ability to release multiple
neurotransmitters, or if each neuron was limited to one specific
transmitter. If they can have multiple transmitters, how is it decided
which transmitter is released? Are they all dumped into the synapse at the
same time? My understanding is that vesicles are sensitive to calcium ion
levels and will release their transmitters when the concentration reaches a
certain point. This seems that if there are multiple types of
transmitters, the vesicles would release them all at the same time.
Thanks,
-Zachary Tong
