organ

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Across
  1. 2. Membrane that vibrates to detect sound
  2. 6. Opening at the end of the digestive tract
  3. 8. Tissue that transmits signals throughout the body
  4. 9. Last part of the digestive tract
  5. 10. Organs responsible for breathing
  6. 11. Organ that digests food
  7. 13. Female organ that produces eggs
  8. 16. Pumps blood throughout the body
  9. 17. Male organ that produces sperm
  10. 18. The black circular opening in the eye
  11. 20. Fluid that circulates immune cells
  12. 21. Hollow cavities in the skull
  13. 26. Organs that filter waste from the blood
  14. 28. Organ that produces insulin
  15. 30. Transparent part of the eye's outer layer
  16. 31. Layer of tissue in the back of the eye
  17. 34. Tiny blood vessels where exchange happens
  18. 36. Tube that carries food from mouth to stomach
  19. 38. Cord that transmits signals to the brain
  20. 39. Gland that controls other endocrine glands
Down
  1. 1. Organ that stores urine
  2. 3. Female organ where pregnancy occurs
  3. 4. First part of the large intestine
  4. 5. Gland in males that produces seminal fluid
  5. 7. Organ that helps filter blood and fight infections
  6. 12. Spiral part of the inner ear
  7. 14. Stores bile produced by the liver
  8. 15. Blood vessel that carries blood to the heart
  9. 17. Gland that trains T-cells in immune system
  10. 19. Vital organ that detoxifies the body
  11. 21. System that supports and protects the body
  12. 22. Tissue responsible for movement
  13. 23. Organs where nutrient absorption occurs
  14. 24. Glands that produce hormones like adrenaline
  15. 25. Control center of the body
  16. 27. Part of the eye that controls pupil size
  17. 29. Blood vessel that carries blood away from the heart
  18. 32. Part of the digestive system
  19. 33. Hard tissue that forms the skeleton
  20. 35. Flap of cartilage that covers the trachea during swallowing
  21. 37. Gland that regulates metabolism