Heart and Circulatory System Crossword

This printable crossword puzzle on the topic of Human Body Systems has 16 clues. Answers range from 4 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

These keep blood moving in one direction only
Blood picks this up in the lungs
These vessels flow into the heart
These vessels flow away from the heart
The liquid part of the blood
The part of the blood the makes blood clots
The pumps blood around the body
the two lower chambers of the heart
the artery from the heart to the lungs
the upper chambers of the heart
The name given to the inner space of blood vessels
the cells that keep the heart beating rhythmically
word to describe blood with less oxygen
Amount of components in the blood
Blood vessels that reach all over the body
The blood component that fights germs