Respiratory System

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Across
  1. 2. Abdominal muscle that assists forced exhalation by increasing abdominal pressure
  2. 4. Ligament connecting thyroid and cricoid cartilages and commonly used for emergency airway access
  3. 6. Lymphatic tissue in the nasopharynx that traps airborne microorganisms
  4. 7. Primary muscle of inspiration that increases thoracic cavity volume when it contracts
  5. 10. Supportive cartilage that maintains airway patency and prevents collapse
  6. 11. Curved bony projection that increases surface area for warming and filtering inhaled air
  7. 13. Upper bony shelf in the nasal cavity that creates airflow turbulence to warm and humidify air
  8. 16. Fissure separating the superior and middle lobes of the right lung
  9. 18. Smaller branches supplying specific bronchopulmonary segments
  10. 20. Sinus within the sphenoid bone that reduces skull weight and produces mucus
  11. 21. Paired respiratory organs where gas exchange occurs between air and blood
  12. 22. Bony anterior roof of the mouth that separates oral and nasal cavities
  13. 25. Inferior portion of the pharynx that directs air to the larynx and food to the esophagus
  14. 26. Muscle tissue in airway walls that regulates airway diameter and airflow resistance
  15. 34. Largest paranasal sinus located in the maxillary bone that conditions inhaled air
  16. 36. Small airways lacking cartilage that regulate airflow through smooth muscle contraction
  17. 37. Muscle that can assist forced inspiration by elevating the ribs
  18. 41. Membrane connecting the thyroid cartilage to the hyoid bone
  19. 42. Muscular posterior roof of the mouth that closes the nasopharynx during swallowing
  20. 44. Elastic cartilage flap that closes the airway during swallowing
  21. 47. Projection hanging from the soft palate that helps prevent food from entering the nasal cavity
  22. 48. Superior pointed portion of a lung extending above the clavicle
  23. 51. Branches of the primary bronchi that supply individual lung lobes
  24. 52. Smooth muscle connecting the open ends of tracheal cartilage rings that adjusts airway diameter
  25. 53. Superior portion of the pharynx posterior to the nasal cavity that conducts air only
  26. 56. Medial lung region where bronchi blood vessels and nerves enter and exit
  27. 57. Anterior projection of the thyroid cartilage commonly called the Adam's apple
  28. 58. Mucus producing epithelial cells that trap dust pathogens and particulate matter
  29. 59. U shaped bone that supports the tongue and anchors laryngeal structures
  30. 61. Multiple small air spaces within the ethmoid bone that warm and humidify air
  31. 62. Muscles between ribs that elevate the rib cage during inhalation
  32. 63. Lower lung lobe containing large amounts of respiratory tissue
  33. 64. Neck muscle that elevates the sternum during forced inhalation
  34. 65. Lymphatic tissue at the base of the tongue that participates in immune defense
Down
  1. 1. Unique lobe of the right lung located between superior and inferior lobes
  2. 3. Central compartment between the lungs containing the heart trachea and major vessels
  3. 4. Indentation on the left lung accommodating the heart
  4. 5. Deep groove separating the right and left lungs within the thoracic cavity
  5. 8. Deep abdominal muscle that compresses abdominal contents during forced exhalation
  6. 9. True vocal cords that vibrate to produce sound
  7. 12. Largest nasal concha that helps humidify and filter incoming air
  8. 14. Air filled cavity in the frontal bone that lightens the skull and adds voice resonance
  9. 15. Respiratory epithelium whose cilia move mucus and trapped debris toward the pharynx
  10. 17. Smallest conducting airways that transport air but do not participate in gas exchange
  11. 19. Fissure separating superior and inferior lobes of the left lung and middle from inferior lobe on the right
  12. 23. False vocal cords that help protect the airway
  13. 24. Chest muscle that assists forced inhalation by elevating ribs when the scapula is fixed
  14. 27. External openings of the nose that allow air to enter the respiratory tract
  15. 28. Opening between the vocal folds through which air passes during breathing
  16. 29. C shaped hyaline cartilage rings that prevent airway collapse
  17. 30. Ring shaped cartilage inferior to the thyroid cartilage that supports the airway
  18. 31. Ligament connecting the cricoid cartilage to the first tracheal ring
  19. 32. Middle portion of the pharynx posterior to the oral cavity that conducts air and food
  20. 33. Muscular passageway that conducts both air and food through the throat
  21. 35. Muscles that depress ribs during forced exhalation
  22. 38. Neck muscles that elevate the first two ribs during deep inspiration
  23. 39. First airways containing alveoli where gas exchange begins
  24. 40. Internal ridge at the tracheal bifurcation that triggers the cough reflex when irritated
  25. 41. Air conducting tube reinforced with cartilage rings extending from larynx to bronchi
  26. 43. Glands in the tracheal wall that secrete mucus and fluid to trap and remove particles
  27. 45. Cartilaginous airway between the pharynx and trachea that houses the vocal cords
  28. 46. Largest laryngeal cartilage that protects the vocal folds
  29. 49. First branches of the trachea that carry air into each lung
  30. 50. Histologic airway lined with pseudostratified ciliated epithelium and cartilage to conduct and clean air
  31. 54. Upper lobe of each lung containing respiratory tissue for gas exchange
  32. 55. Lymphatic tissue located in the oropharynx that helps defend against inhaled pathogens
  33. 60. Inferior surface of the lung resting on the diaphragm