Introduction to the Circulatory System Crossword

This printable crossword puzzle on the topic of Human Body Systems has 14 clues. Answers range from 4 to 16 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

A wall that separates the left and right side of the heart
The number of chambers in a human heart
The largest artery in the body
The blood vessel that carries deoxygenated blood into the right atrium
Blood vessels that carry blood away from the heart
Blood vessels that carry deoxygenated blood to the heart
Tiny blood vessels that are the site of gas exchange
Flaps of tissue that prevent blood from flowing backwards in the heart
The left atrium receives oxygenated blood from the
The main organ in the circulatory system
The gas that is transported to our cells in the circulatory system
The gas that is removed as waste by our circulatory system
The blood leaves your heart from which chambers
The organ that gives oxygen to the blood