Circulatory System Crossword puzzle

This printable crossword puzzle on the topic of Human Body Systems has 10 clues. Answers range from 5 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Also known as,the cardiovascular system
Pumps blood throughout the body
Receives blood that comes into the heart
Pumps blood out of the heart
A flap of tissue that prevents blood from flowing backwards
Carries blood away from the heart
The largest artery in the body
From the arteries, blood flows into tiny vessels call…
Carries blood back to the heart
What a red blood cells mostly made up of.