This printable crossword puzzle on the topic of Human Body Systems has 10 clues. Answers range from 7 to 22 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Action of intercostal muscles while breathing in
Action of intercostal muscles when breathing out.
Action of diaphragm muscle when breathing in.
Action of diaphragm when breathing out
Position of rib cage when breathing in.
Position of rib cage when breathing out.
Pressure in lungs and alveoli when breathing in.
Pressure and alveoli when breathing out.
Movement of air when breathing in.
Movement of air when breathing out.