Across
- 4. Stores urine before it exits the body.
- 7. Produces insulin and digestive enzymes.
- 9. These nerve cells carry messages in the nervous system.
- 12. This large organ filters toxins and produces bile.
- 14. The shinbone; larger of the two bones in the lower leg.
- 17. Produces hormones that regulate body functions.
- 18. The longest and strongest bone in the human body.
- 19. The body system that includes the brain, spinal cord, and nerves.
- 20. The largest organ of the body.
- 21. Supports the body and protects internal organs.
- 24. – Connects bone to bone at a joint.
- 25. Allows movement and generates heat.
Down
- 1. Filters waste from blood to produce urine.
- 2. Connects muscle to bone.
- 3. This system transports blood, nutrients, and oxygen.
- 5. Brings oxygen into the body and removes carbon dioxide.
- 6. Where digestion begins with acid and enzymes.
- 8. Colored part of the eye that controls pupil size.
- 10. Helps filter blood and fight infection.
- 11. – Muscle that helps with breathing by moving the lungs.
- 13. Breaks down food into nutrients for the body.
- 15. This organ controls thoughts, memory, and body functions.
- 16. This organ pumps blood throughout the body.
- 22. These organs help you breathe and are part of the respiratory system.
- 23. These glands sit above the kidneys and release stress hormones.