Organ Systems
Across
- 1. lymph vessels are filled with this fluid
- 4. system of all the body’s defense systems
- 7. a function of the skeletal system
- 8. system's control is slow, long duration
- 13. gas exchange occurs at these sacs
- 14. the heart is this system's main structure
- 15. male gonads
- 16. trachea and lungs are part of this system
- 17. lymph ___ act as small filters
- 18. System with bones and joints
- 19. name of the heart muscle
- 20. system where the waste product is urine
- 21. main structures of the endocrine system
- 22. A group of organs
Down
- 2. secreted directly into the blood
- 3. System functions by nerve _______.
- 4. System with skin as its only organ
- 5. function: continuous movement of o2 & co2
- 6. teeth and salivary glands are ____ organs
- 9. Lympatic functions: transportation & ____
- 10. female gonads
- 11. balance of body’s internal environment
- 12. type of muscle we can control
- 14. made up of the brain and spinal cord