Across
- 3. located in the upper right abdomen, plays a vital role in detoxifying the body by filtering blood and metabolizing toxins.
- 5. Tough tissue; connects muscle to bone.
- 6. Nasal opening; allows air to enter the respiratory system.
- 9. Digestive organ; regulates blood sugar levels and produces digestive enzymes.
- 11. Thigh bone; largest bone in the human body.
- 13. Chemical messenger; regulates body functions and growth.
Down
- 1. Living being; examples: a plant, animal, or human.
- 2. Blood vessel; carries oxygen-rich blood away from the heart.
- 4. Feel-good chemical; associated with pleasure and reward.
- 7. Breathing system; involves inhaling oxygen and exhaling carbon dioxide.
- 8. Genetic blueprint; carries instructions for the development and function of living organisms.
- 10. Nerve cell; building block of the nervous system.
- 12. Body's electrical wiring; transmits signals between the brain and body.