Across
- 2. The upper right chamber of the heart where blood from the body first enters.
- 3. The type of blood that has a lot of oxygen, found in the left atrium.
- 5. The total number of main chambers (rooms) in the human heart.
- 6. The direction your diaphragm moves when you breathe in.
- 9. The main tube or windpipe that air travels down to reach your lungs.
- 13. The upper left chamber of the heart.
- 14. A type of joint that moves back and forth like a door (e.g., your elbow).
- 15. The organ responsible for filtering blood and making urine.
- 17. Where air first enters your body when you breathe in (your nose area).
- 18. What you feel when checking your heart rate.
- 19. What the kidney does to your blood.
- 20. The long bone in your upper arm.
- 23. The lower left chamber of the heart, which pumps oxygenated blood to the body.
- 25. Your skeleton also helps you to _______.
- 27. How long you should check your pulse or heart rate.
- 28. The hard parts that make up your skeleton.
- 29. The bones of your head that protect your brain.
Down
- 1. The part of your skeleton that protects your lungs and heart.
- 4. The largest artery in the body; blood leaves the left ventricle through this.
- 7. Your skeleton gives your body its _______.
- 8. The important organ protected by your skull.
- 10. The lower right chamber of the heart.
- 11. The main organ that pumps blood in your body.
- 12. Arteries move blood _______ from the heart.
- 13. The organs that get bigger when you breathe in air.
- 16. The part of your throat that contains your voice box.
- 21. All the bones in your body; it gives you your shape.
- 22. The body system responsible for sending and receiving electrical signals.
- 24. Strong tissues that connect muscle to bone.
- 26. Blood vessels that bring blood back TOWARDS the heart.