Across
- 3. delivers blood to the heart and away from the heart
- 4. the area protecting the heart, lungs, and other organs
- 6. the 2 bones in the forearm
- 8. helps move the shoulder
- 12. three-headed muscle
- 13. Either of two airways, which are primary branches of the trachea, leading directly into the lungs.
- 15. vertebrae that extend into the brain and body
- 16. the top of the head
- 17. pumps blood into the body
- 18. a location where 2 or more bones connect
- 19. the jaw area of the head
Down
- 1. the brain and spinal cord
- 2. contains all the nerves in the body
- 5. Any of the small blood vessels that connect arteries to veins.
- 7. a type of muscle tissue
- 9. used to inhale and breathe out air from the lungs
- 10. the central nervous system of an animal located in the skull
- 11. a thin-walled, cartilaginous tube connecting the larynx to the bronchi; the windpipe.
- 14. the muscle that contracts when you bend your elbow
- 15. a channel for transmitting venous blood.