This printable word search puzzle on the topic of Human Body Systems contains 12 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
neurotransmitters
action potential
terminal branch
depolarization
myelin sheath
positive ions
synaptic gap
reuptake
Dendrite
neuron
cell
axon