Respiratory System Crossword

This printable crossword puzzle on the topic of Human Body Systems has 17 clues. Answers range from 4 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

A gas which we need to survive
Used for breathing and smelling
Hollow spaces in the skull
Also called the windpipe
Major air passages of the lungs which diverge from the trachea
Short microscopic hair
A sticky fluid, can be found in the nose
Tiny air sacs of the lungs
Absorbed by plants in photosynthesis.
The smallest blood vessel
Carries blood to the lungs
Transfers blood from the lungs to the heart
a dome-shaped muscle at the bottom of the lungs
the degree or intensity of heat present in a substance or object
each of the pair of organs situated within the ribcage,
valentines symbol
firt word of this title