Respiratory System Crossword

This printable crossword puzzle on the topic of Human Body Systems has 15 clues. Answers range from 5 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Upper respiratory tract
Lower respiratory tract, main organs of the respiratory system
Within the lungs are air passages
At the ends of the bronchial tree are millions of tiny air sacs
Air is carried into alveoli
Carbon dioxide is carried up the airways and out of the body
Group of muscles used for exhaling
Most common illness that affects the respiratory system
An infection of the lungs that causes difficulty breathing
Swelling or inflammation of the bronchi
A fairly common condition that can make breathing difficult
Air sacs in the lungs that become enlarged and lose their elasticity
When the cancer cells grow out of control and destroy the air sacs in the lungs
The cavity that connects the nose and mouth to the esophagus
A tube that moves air to and from the lungs