This printable crossword puzzle on the topic of Human Body Systems has 15 clues. Answers range from 5 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
the organs that you need to survive, and that breathe in air
muscle that helps you breathe by contracting to create more space in your thoracic cavity.
system that takes in air, and circulates oxygenated blood all over your body
where air usually travels first through your nose, where it is warmed, moistened, and filtered.
membrane that is in your nasal cavity; secretes a sticky mucus that traps dust particles and other foreign substances found in the air.
Your air travels here next; your throat
Enters here after the pharynx; voice box
Air goes here after your larynx; windpipe. Branches off into the right and left bronchi
Trachea branches into these; and allow the air to enter the two lungs
Each lung is covered by this slippery, thin membrane that reduces friction as you breathe; is held by a lubricating liquid
Lungs contain about 300 million of these tiny air sacs
This lung is bigger than the other and has three lobes; which side is it on?
This lung is smaller than the other; it has only two lobes
One of the functions of the respiratory system; cover your mouth!
One of the functions of the respiratory system; achoo!