Respiratory and Excretory Systems Crossword

This printable crossword puzzle on the topic of Human Body Systems has 20 clues. Answers range from 4 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Organ system that makes you breath.
Eliminates excess waste.
Contains the nostrils to breath.
Lung tubes.
The major air passages of the lungs.
Take in air.
Air sacks in lungs (Swap Meet)
The action of breathing.
Large dome-shaped muscle that expands and contracts to take in air.
Pair of organs that excrete urine.
Connects the kidneys to the bladder where urine runs through.
Sack that collects urine.
Tube where urine exits the body.
Turns ammonia into urea.
The process of elimination wastes.
Tube that pushes air- after the nose and mouth.
Produces your voice.
Excess chemicals and fluids.
Chemical formed by the breakdown of protein.
Covering of body- Releases sweat from body