Across
- 3. - A sign of illness involving a high body temperature.
- 5. - The backbone or vertebral column.
- 6. - An organ that helps filter blood and fight infection.
- 11. - A reflex to clear the throat or airways.
- 13. - The largest organ of the human body.
- 14. - The muscular organ that pumps blood.
- 15. - An organ that filters waste to produce urine.
- 17. - An organ that filters blood and aids digestion.
Down
- 1. - A vessel that carries blood away from the heart.
- 2. - A type of germ that causes infections like the flu.
- 4. - A vessel that carries blood toward the heart.
- 5. - A natural state of rest for the body and mind.
- 7. - The main organs used for breathing.
- 8. - The location where two or more bones meet.
- 9. - The hard, structural part of the skeleton.
- 10. - Tissue that contracts to create movement.
- 12. - The body's control center, located in the head.
- 16. - A fiber that sends signals through the body.