3-Day Old Zebrafish Trigeminal Sensory Neurons
The trigeminal sensory neurons (the cells next to the eye) and their axons (the branches emanating from the cell bodies) are labeled by Brainbow transgenic expression. The axons of these sensory neurons extend into the brain (the horizontal bundle on the right side), where they encounter neurons within the brain. The color in the eye is due to tissue autofluorescence.
Image Courtesy: Albert Pan of Schier Lab.