Across
- 1. Main muscle responsible for breathing
- 4. Tube that transports urine from the kidneys to the bladder
- 5. Muscular tube that carries food from the throat to the stomach
- 7. Tiny air sacs in the lungs where gas exchange occurs
- 8. Tiny finger like structures in the small intestine that absorb nutrients
- 9. First section of the small intestine
- 10. Two major air passages that branch from the trachea
- 13. Tube that carries urine out of the body
- 14. Organ that produces insulin and digestive enzymes
Down
- 2. Network of tiny blood vessels that filters blood in the kidney
- 3. Wave like muscle contractions that move food through the digestive tract
- 5. Flap that prevents food from entering the windpipe
- 6. Upper chamber of the heart that receives blood
- 11. Functional unit of the kidney that filters blood and produces urine
- 12. Windpipe that carries air to and from the lungs