CV + R SYSTEM Crossword

This printable crossword puzzle on the topic of Human Body Systems has 12 clues. Answers range from 4 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

The thicker side of the heart
This allows blood to flow to the rest of the body
The inside diameter of a vein/capillaries/arteries
Carries blood back to body from heart
Carries de-oxygenated blood from heart to lungs
What valve separates the r. atrium from the r. ventricle
The muscular organ that pumps blood around the body
The cells inside the lungs with a large surface area (where gas exchange occurs)
The large vein that takes blood to the heart from the body
High pressure, circulatory tube.
Heart rate is counted in
You are fitter if your heart has a higher