BIOLOGY

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Across
  1. 4. A colorless liquid of the lymphatic system.
  2. 8. A cartilage flap that covers the glottis so that the food enters the esophagus, not the lungs.
  3. 9. A type of respiration that uses oxygen to generate ATP that is required for life
  4. 11. Refers to the widening of blood vessels that occurs when smooth muscles in the arteriole relaxes
  5. 14. The tube that connects the bladder to the outside of the body
  6. 17. This is where the signal to contract begins and also known as the sinoatrial node
  7. 20. Liquid waste formed as the kidney cleanse the blood
  8. 21. They are the finest branches in the lungs
  9. 22. A condition in which the immune system lacks one or more essential components
  10. 23. A substance that triggers an allergy or an allergic reaction
  11. 24. A box-like structure that produces the voice. Also referred to as the adam’s apple.
  12. 26. Inflammation of the alveoli wherein mucus and white blood cell accumulate.
  13. 28. Functional units of the Kidney
  14. 29. Also known as the throat
  15. 30. Mineral-hardened structures embedded in the jaws.
Down
  1. 1. Rhythmic waves of contractions that propel food in one direction
  2. 2. A hormone that stimulates production of sodium channels in the nephron
  3. 3. Process wherein food enters into the mouth
  4. 5. Scavenger cells that engulf and destroy bacteria and debris
  5. 6. A type of circulation wherein blood from the right side of the heart exchanges gasses at the lungs and returns to the lungs
  6. 7. A substance that stimulates active immunity against a pathogen without actually causing illness
  7. 10. A chemical that dilates blood vessels and causes them to become leakier
  8. 12. A condition in which there are fatty deposits inside the walls of arteries which reduce blood flow
  9. 13. An enzyme that digests proteins
  10. 15. The process wherein organisms control the concentration of ions in their body fluids as their environment changes
  11. 16. A reaction in which cells clump together due to the production of antibodies against incompatible blood types.
  12. 18. An infection of the bacterium, Mycobacterium tuberculosis
  13. 19. Semifluid mixture of food and gastric juice in the stomach
  14. 25. Major excretory organs in the urinary system.
  15. 27. Substances that are required for metabolism, growth, maintenance and repair