Vesicles of The Neuron
  
  A colorized scanning EM of a nerve broken open to reveal the vesicles containing the neurotransmitters.
  
  Image Credit: NIH, via Curiosity/Discovery, via Sloth Unleashed

Vesicles of The Neuron

A colorized scanning EM of a nerve broken open to reveal the vesicles containing the neurotransmitters.

Image Credit: NIH, via Curiosity/Discovery, via Sloth Unleashed