This printable word search puzzle on the topic of Human Body Systems contains 30 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.
paranasal sinuses
carbon dioxide
breathe lungs
nasal cavity
oral cavity
ventilation
bronchioles
expiration
pneumonia
respiration
respiratory
vocal cords
diaphragm
esophagus
pharynx
trachea
alveoli
asthma
septum
breath
exhale
inhale
larynx
mouth
mucus
oxygen
thorax
cilia
lungs
air