This printable crossword puzzle on the topic of Human Body Systems has 24 clues. Answers range from 3 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
A gas produced in respiration that is passed out of the body from the lungs
Allows the lungs to move over one another without friction
Another name for the chest cavity
the process of drawing air into and out of the lungs
An abbreviation for a disease that affects the heart, caused by the nicotine and carbon monoxide found in cigarettes
Allows air to pass from the mouth to the lungs
the process of breathing in
An infection of the bronchi
A good ______ ______ maintains the concentration gradient in the lungs
An addictive chemical found in cigarettes
Causes a range of lung conditions
The process of breathing out air
A chemical process by which energy is released
Artery that carries blood between the heart and lungs
Two of these carry air into each lung
Where the walls of the alveoli are damaged and fuse together
A mechanical process to get oxygen into, and carbon dioxide out of, the lungs
This model represents the lungs in a limited way
Has an effect on breathing rate, the more you do the higher your breathing rate
A carcinogen found in cigarette smoke
Sheet of muscle that allows the thorax to ventilate
Process by which gas exchange occurs in the lungs
Found centrally in the thorax
Small sac where gas exchange takes place