Across
- 4. the process by which nutrients pass through the lining of the digestive system into the blood
- 6. a flap of tissue that seals off the windpipe
- 7. a substance that speeds up chemical reactions
- 8. breaking down food into molecules the body can use
- 9. formed by the harmful waste product of protein breakdown
- 10. the process by which the body collects and removes waste
- 11. muscle contractions that push food through the esophagus
- 12. a watery fluid produced by the kidneys
- 17. a machine is used to filter blood in place of the kidneys
- 18. caused by food or drink that contains a poison or disease-causing microorganism
- 19. the junction between the digestive tract and the respiratory system
Down
- 1. the spread of microorganisms from one food to another
- 2. a tiny cluster of blood vessels in the nephron
- 3. a thick mixture of food and gastric juices formed in the stomach
- 5. a substance that physically breaks up large fat droplets
- 13. tiny filtering units that remove waste and produce urine
- 14. the organ that stores bile
- 15. tiny finger-like projections that line the small intestine
- 16. filter urea and other wastes from the blood