Respiratory System

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Across
  1. 2. The passages that branch from the trachea and direct air into the lungs
  2. 6. The exchange of carbon dioxide for oxygen which takes place between the capillaries of the pulmonary arteries and the alveoli. (Inhalation and Exhalation)
  3. 10. one of the tubules forming the respiratory system of most insects and many arachnids
  4. 11. two folds of connective tissue that are stretched across the opening of the larynx.
  5. 12. protective secretion of the mucous membranes
  6. 13. Tube at the back of the mouth; serves as a passageway for both air and food; Throat
  7. 15. tiny sacs of lung tissue specialized for the movement of gases between air and blood
  8. 16. Collections of lymphatic tissue.
  9. 17. two spongy organs, located in the thoracic cavity enclosed by the diaphragm and rib cage, responsible for respiration
  10. 19. Exchange of air in the lung capillaries.
  11. 20. progressively smaller tubular branches of the airways
  12. 22. Vibrate to produce sounds as expelled air passes the vocal cords.
  13. 24. System that brings about the exchange of oxygen and carbon dioxide
  14. 25. Pair of almond-shaped masses of lymphatic tissue in the oropharynx.
Down
  1. 1. A cell that lines certain tubes in the body and has cilia on its surface.
  2. 3. Exchange of gases in the cells.
  3. 4. voice box; passageway for air moving from pharynx to trachea; contains vocal cords
  4. 5. the cavity behind the nose and above the roof of the mouth that filters air and moves mucous and inhaled contaminants outward and away form the lungs
  5. 7. passing or able to pass air in and out of the lungs normally
  6. 8. cells that secrete mucus
  7. 9. One of the air cavities in the bones near the nose.
  8. 14. the metabolic processes whereby certain organisms obtain energy from organic molecules
  9. 18. Large, dome-shaped, sheet of muscle below the lungs which allows a change in the size of the chest cavity.
  10. 21. Leads into the stomach and carries food to be digested.
  11. 23. short structures projecting from a cell and containing bundles of micro tubules that move a cell through its surroundings or move fluid over the cell's surface