Repiratory System Terms Crossword

This printable crossword puzzle on the topic of Human Body Systems has 11 clues. Answers range from 6 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

substance in fluid that lines the alveoli that keeps them from collapsing; premie babies might lack this
same as exhalation; expelling air
the active phase of breathing
the major muscle of respiration
minor muscles of respiration, used in forced breathing
the ease of expansion of the lungs and thorax
abnormally low oxygen level in the blood
abnormally low oxygen level in body tissues
amount of air inhaled or exhaled in relaxed breathing
the voice box
the throat