This printable word search puzzle on the topic of Human Body Systems contains 25 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.
cellular respiration
intercostal muscles
cricoid cartilage
nasolacrimal duct
carbon dioxide
sinus cavity
mediastinum
bronchioles
ambient air
respiration
ventilation
oropharynx
epiglottis
hemoglobin
exhalation
inhalation
diaphragm
bronchi
pharynx
trachea
alveoli
asthma
larynx
oxygen
lungs