artwork
axon
biochemistry
biological
biology
biomedical illustration
black background
blue
cell
cell body
central nervous system
close up
connector
dendrite
dendrites
full frame
healthcare
human biology
human health
illustration
light
medical
medicine
microbiology
nerve
nerve cell
nervous system
neural
neural activity
neurobiology
neurological
neurology
neuron
neurone
nucleus
pinprick
spark
synapse
synapses
transmitter