Cells and Systems

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Across
  1. 2. A group of cells that produces and secretes or gives off chemicals
  2. 3. A circular muscle that controls the outer end of the urethra
  3. 8. The outermost barrier of a plant cell
  4. 9. A process done by heating up in order to kill any bacteria
  5. 11. Often referred to as the voice box
  6. 15. The organ that pumps blood through your body
  7. 17. Produced by the liver and stored in the gallbladder
  8. 18. Grape like structures found at the end of the bronchioles
  9. 20. Someone who studies hormones,receptors and intracellular pathways
  10. 23. Tubes that carry urine from the kidneys to the urinary bladder
  11. 25. A muscle that draws air in and out of the lungs as it moves
  12. 27. A vessel that carries oxygenated blood away from the heart
  13. 28. Excess salt and sugar that has been crystallized
  14. 29. In a plant cell where photosynthesis takes place
  15. 30. finger like projections of the lining of the small intestine
  16. 31. The muscular tube that brings food from your mouth to your stomach
  17. 33. Tube that carries urine from the bladder to the outside of the body
  18. 34. The gland that produces adrenaline
Down
  1. 1. Fist sized bean shaped structures often referred to as renal structures
  2. 4. A flap of tissue that guards the entrance to your trachea
  3. 5. The brain of a cell
  4. 6. The system responsible for excreting waste
  5. 7. The type of acid found in your stomach
  6. 10. The diffusion of water molecules across a semi-permeable membrane
  7. 12. Portion of the brain that maintains homeostasis
  8. 13. These produce antibodies and fight disease
  9. 14. The system that is responsible for digestion
  10. 16. The pea sized gland located under the hypothalamus
  11. 17. Where blood cells are produced
  12. 19. A virus that can affect more than one species
  13. 20. A chemical that acts on the nervous system to reduce sensitivity
  14. 21. What is the system that is responsible for breathing?
  15. 22. Lungs exhale carbon dioxide and __________.
  16. 24. Small pathways that connect arteries to veins
  17. 26. A vessel that carries deoxygenated blood to the heart
  18. 32. A chemical that triggers the release of sugar