Circulatory System Crossword

This printable crossword puzzle on the topic of Human Body Systems has 13 clues. Answers range from 3 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Largest artery in the body
Vessel that moves blood away from the heart toward capillaries
Upper chambers which receive blood returning to the heart
Microscopic blood vessel which allows materials to diffuse in and out of blood
Protein found in red blood cells that transports oxygen
Liquid portion of blood
Helps blood to clot. Produced in bone marrow
Pressure of the blood flowing against artery walls when ventricle contracts
Prevents back flow in the heart
Vessel that moves blood toward the heart and away from the capillaries
Lower chambers which pump blood out of the heart
Blood cell that fights and destroys foreign agents
Blood cell that transports oxygen, produced in bone marrow