Across
- 7. system that filters blood, includes kidneys
- 10. tube that passes food from mouth to stomach
- 11. gas that we inhale
- 13. system that breaks down of food into nutrients
- 15. bones that protect the brain
- 16. system that allows commication between body parts
- 18. carry blood away from the heart
- 20. system transports nutrients and oxygen to body
- 21. largest artery leaving the heart with oxygenated blood
- 22. part of the respiratory system where gas is exchanges
- 23. specialized nerve cell
- 26. bones that protect the spinal cord
- 27. system that allows movement
- 28. air sacs in the lungs
Down
- 1. part of brain; controls involuntary muscles such as heart and diaphragm
- 2. system provides structure, support and protection
- 3. upper thigh bone
- 4. stretchy material that connects bones to bones
- 5. lower chambers of the heart
- 6. main organ that filters blood
- 8. system in which oxygen is inhaled
- 9. type of neuron the sends impulse from brain to muscles
- 12. largest part of the brain, controls thinking, memory
- 14. another name for windpipe
- 17. longest portion of the digestive system stretchy material connects bones to other bones
- 19. control center of the body
- 24. waste from kidneys
- 25. vessels between arteries and veins