Across
- 4. A system the controls you body parts
- 5. substance in the human body that travels through the blood vessels
- 7. secretes digestive enzymes and gastric acid to aid in food digestion
- 8. primary organs of the respiratory system
- 9. A bone that protects our brain
- 10. Start of the Digestive system
- 11. A muscle located at the heart
- 12. blood vessels that carry blood towards the heart
- 13. A system that contains 650 muscles
- 15. Pumps blood throughout the body
Down
- 1. Supplies the body with oxygen
- 2. A muscle located at the skull
- 3. A muscle located at the hollow parts (Ex: stomach)
- 6. connecters of the veins and arteries
- 14. a blood vessel that takes blood away from the heart to one or more parts of the body