RESPIRATORY SYSTEM Crossword

This printable crossword puzzle on the topic of Human Body Systems has 14 clues. Answers range from 5 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Dome shaped muscle involved in breathing
Brings deoxygenated blood to the lungs from the heart
Takes oxygenated blood back to the heart
This element is the reason we breathe
Also known as the windpipe
The smallest of respiratory branches
The trachea divides into left and right primary ______________
Waste product of respiration
Breathe out
Breathe in
Each lung has separate sections called __________
Clusters of tiny, thin walled air sacs where gas exchange occurs
Seen from outside as the "Adams apple" which contains the vocal cords
The tube at the back of the throat shared by the respiratory and digestive systems