This printable word search puzzle on the topic of Human Body Systems contains 11 hidden words in a 17x17 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.
Respiratory system
carbondioxide
diaphragm
esophagus
pneumonia
alveoli
Trachea
bronchi
Oxygen
exhale
inhale