Cardio-respiratory system Crossword

This printable crossword puzzle on the topic of Human Body Systems has 13 clues. Answers range from 4 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

blood vessel taking blood away from the heart
breathing in
the system of organs and vessels that gets oxygenated blood to the body tissues and removes waste gases
amount of air inspired and expired with each normal breath at rest during exercise
vessel carrying blood to the heart
microscopic vessel that are one cell thick
type of blood cell that destroys pathogens
red protein in the blood that transports oxygen
large vein bringing deoxygenated blood into the heart
when veins shrink down
process of releasing energy from glucose, using oxygen
process of releasing energy from glucose, without oxygen
number of times the heart beats per minute