Across
- 1. smallest blood vessels that carry blood from the arteries to the body's cells
- 6. body's resistance to specific foreign intruders
- 7. maintain homeostasis; made of brain and spinal cord
- 9. produces blood cells within the bone
- 10. group of passages that exchanges gases in order for the body to function properly
- 12. number of beats per minute
- 13. outer layer of skin
- 15. large muscle that separates the chest from the abdomen
- 18. muscular pump
- 20. main organs of the respiratory system
- 21. process by which food is broken down
- 22. exhalation
- 23. increases heart rate to provide more oxygenated blood to the body
- 25. released by salivary glands
- 26. whole purpose is to expel waste from the body
- 29. cleanse blood of impurities; regulates water and electrolytes within the body
- 31. combination of joints and connecting tissues
- 33. connect the CNS to other body parts make
Down
- 2. largest blood vessels that carry oxygenated blood away from heart
- 3. inner layer of skin
- 4. transports the blood throughout the body to keep the body functioning properly
- 5. passageway for nerves and blood vessels: looks like honeycomb
- 8. functions as a passageway for food from the mouth to the stomach
- 11. first layer of bone
- 14. group of tissues that makes body parts move
- 16. body adapts to respond to certain invaders
- 17. solid, strong,dense bone
- 18. chemical messengers; help regulate the body
- 19. inhalation
- 24. inborn resistance to certain diseases
- 27. provide ways for waste to be excreted from the body
- 28. organs that take in food and break it down
- 30. tiny air sacs at the end of bronchial tree
- 32. take blood from the body back to the heart