Across
- 2. blood vessels that carry blood away from the heart.
- 5. small balloon-like structures called alveoli attached to the branches of the bronchial passages.
- 6. organ found in vertebrates and invertebrates.
- 7. tubes forming part of the blood circulation system of the body.
- 8. blood vessels that form a network between the arterioles and venules.
- 9. made up of the organs in your body that help you to breathe.
- 10. network of tissues and organs that primarily consists of lymph.
- 11. liquid needed to survive
- 12. an organ nvolved in breathing, sound production, and protecting the trachea against food aspiration.
Down
- 1. oval-shaped organ of the lymphatic system.
- 3. a tube that connects the pharynx and larynx to the lungs, allowing the passage of air.
- 4. main passageway into the lungs.
- 8. organ system that permits blood to circulate and transport nutrients
- 10. clear-to-white fluid made of: White blood cells.