Pe Crossword
This printable crossword puzzle on the topic of Human Body Systems has 14 clues. Answers range from 4 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
where does the mouth cavity travel into?
what is the trachea made up of?
what is a bronchi
what are lungs?
what does an alveoli have?
where does gaseous exchange occur?
what is inspiration?
what is expiration?
what do inspiration and expiration involve?
what do breathing muscles in inspiration do?
what does the chest cavity do?
what do the breathing muscles in expiration do?
what is the process of inspiration assisted by?
what is expiration assisted by?
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