Across
- 2. – Air sacs in the lungs for gas exchange.
- 4. – Carries blood away from the heart.
- 7. – The volume of air breathed in or out during normal breathing.
- 9. – A bending movement at a joint.
- 10. – The muscle that contracts to cause movement.
Down
- 1. – Pumps blood around the body.
- 3. – Group of muscles at the back of the thigh
- 5. – Connects muscle to bone.
- 6. – Smallest blood vessel where gas exchange occurs.
- 8. – Main organs of the respiratory system.