Respiratory System (1)

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Across
  1. 3. cartilage the protects the vocal cords in the larynx
  2. 7. sac-like structures with simple squamous epithelium, surrounded by capillaries
  3. 8. a membrane that lines the inside of the thoracic cavity
  4. 10. a thin layer of tissue that covers the lungs & lines the inside of the chest cavity
  5. 14. the dividing of the trachea into 2 bronchi
  6. 15. a thin, fluid-filled cavity between the lungs & the chest wall
  7. 20. air-filled sacs that equalise air pressure of the eardrum in equines
  8. 22. the type of muscle that allows the trachea to narrow when food is travelling down the oesophagus
  9. 24. a behaviour that allows animals to absorb/process new smells & pheromones
  10. 27. the type of gland found in reptiles & birds that help to maintain a salt balance & preserve water
  11. 28. muscle that makes small adjustments to the vocal ligaments when speaking/singing allowing for precise changes in pitch
  12. 29. cartilage that causes the epiglottis to open & close
  13. 31. the upper part of the pharynx that connects the back of the nose to the back of the mouth
  14. 37. thin, bony plates in the nose that are lined with respiratory epithelium and produce mucus
Down
  1. 1. air-filled cavities lined with ciliated mucus epithelium that lightens the weight of the skull
  2. 2. chonchae covered in olfactory epithelium to detect odours
  3. 4. divides the alar fold into 2 chambers
  4. 5. chambers filled with scrolls of bone/cartilage in an nasal cavity epithelium
  5. 6. the organ that detects pheromones, located in the roof of the mouth
  6. 9. when the epiglottis fails to open & close efficiently causing breathing difficulties
  7. 11. a controlled airflow that moves in one direction
  8. 12. part of the brain that has 300 million receptors for the sense of smell in dogs
  9. 13. small tubes that the bronchi divide into, made up of smooth muscle
  10. 16. a flap of cartilage that covers the windpipe when you swallow to prevent food from entering your lungs
  11. 17. bulb-shaped openings of the front of the nose
  12. 18. where air enters the respiratory tract
  13. 19. a ring of hyaline cartilage that forms the bottom of the larynx and surrounds the trachea
  14. 21. a hollow tube surrounded by C-shaped cartilage rings & trachealis muscle
  15. 23. gaps in cartilage
  16. 25. a floating bone on the larynx that tongue muscles attach to
  17. 26. the region at the back of the mouth made up of hard/soft palates to separate the nasal cavity & mouth
  18. 30. internal nostrils that connect the nasal cavity to the upper respiratory tract
  19. 31. the number of air sacs that most bird species have
  20. 32. the voice box of a bird that allows it to produce to 2 notes simultaneously
  21. 33. the type of membrane that lubricates the respiratory tract & protects organs/cavities within it
  22. 34. the term used for nose pad
  23. 35. the lower part of the pharynx that serves as a passageway for air, food & water
  24. 36. the bone that separates the nasal cavity from the cranial cavity
  25. 38. the middle section of the pharynx involved in swallowing & speaking