This printable crossword puzzle on the topic of Human Body Systems has 13 clues. Answers range from 5 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
The largest artery in the body. It carries oxygen-rich blood away from the heart to vessels that reach the rest of the body.
The chambers of the heart, to which the blood returns from the circulation.
The smallest of the body's blood vessels.
Made up of 4 valves that regulate the flow of blood through the chambers of the heart.
Oxygen-poor blood.
The hollow, muscular organ that maintains the circulation of the blood.
The lower right and left chambers of the heart.
One of a pair of organs in the chest that supplies the body with oxygen, and removes carbon dioxide from the body.
A large vein which returns blood from the head, neck and extremities to the heart.
Oxygen-rich blood.
Deliver blood rich in carbon dioxide (and lacking in oxygen) to the capillaries that surround the air sacs.
The circulation of the blood through the lungs.
The veins that return the oxygenated blood from the lungs to the left atrium of the heart.