Body systems
Across
- 3. system includes the nose, mouth, throat, voice box, windpipe, and lungs.
- 5. bone which looks like a sponge, is inside compact bone.
- 6. enters the respiratory system through the nose or the mouth.
- 7. provide support for our bodies and help form our shape.
- 8. circulation carries blood from the heart to all the other parts of the body and back again.
- 10. muscle attached by cord-like tendons to bone, such as in the legs, arms, and face.
- 12. valve separates the right atrium from the right ventricle.
- 13. bone the solid, hard outside part of the bone.
- 15. dioxide passes into the alveoli to be exhaled.
- 16. joints don't move.
- 17. joints allow movement in one direction, as seen in the knees and elbows.
Down
- 1. valve separates the right atrium from the right ventricle.
- 2. joints allow the greatest freedom of movement.
- 4. system is made up of blood vessels that carry blood away from and towards the heart.
- 9. in our bodies need oxygen to stay alive.
- 11. valve is between the left ventricle and the aorta, which carries blood to the body.
- 14. allow a rotating or twisting motion, like that of the head moving from side to side.