Respiratory System

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Across
  1. 2. generates the pressure changes in the lungs by activity of skeletal muscles (diaphragm, rib cage, and abdominal muscles) (two words)
  2. 3. swollen tonsil, may obstruct airway passages
  3. 4. region that the nasal cavity and the mouth both connect at the back of the mouth also (common passageway for the respiratory and the digestive systems)
  4. 6. composed entirely of smooth muscle, supported by connective tissue
  5. 8. two auditory tubes, open from middle ear into the lateral walls of the nasopharynx, used to equalize air pressure between nasopharynx and middle ear (two words)
  6. 9. respiratory muscles (external intercostal muscles, diaphragm) undergo relaxation, volume of thorax decreases and returns to original shape
  7. 11. a space between the visceral and parietal pleura
  8. 14. located on the posterior wall of nasopharynx, lymphatic tissue, works to protect the respiratory system producing lymphocytes (two words)
  9. 15. Separated from one another by a dividing wall and the area containing the thoracic organs called the
  10. 17. microscopic air sacs in the lungs, surrounded by the membrane
  11. 18. periodic attacks of wheezing, difficulty breathing, caused by spasms of smooth muscles triggered by allergens within the environment
  12. 20. the process of exchanging oxygen and carbon dioxide in cells of the body and external environment
  13. 21. contractions occur ub set of respiratory muscles between the ribs, the first phase of breathing
  14. 23. Inflammation of palatine tonsils
  15. 26. located in the brain stem, includes parts of the medulla oblongata and pons, main area for respiratory muscle control (three words)
  16. 27. blood vessels that transfer freshly oxygenated blood from the lungs to the left atria of the heart (two words)
  17. 29. same structure as trachea, branches of the trachea
  18. 30. opening of the nasal cavity and extend into the frontal,sphenoid,ethmoid,maxillary, and other bones of the skull
  19. 31. the movement of molecules from an area of high concentration to low concentration
Down
  1. 1. largest cartilage, known as the “Adam's Apple” (two words)
  2. 5. two layered membrane that surrounds each lung
  3. 7. deep and rapid breathing
  4. 10. the region extending from the nasal cavities to the larynx, also known as the throat
  5. 12. found on interior surfaces of proximal parts of the ribs, insert on superior / distal parts of next lower rib (three words)
  6. 13. inflammation of the bronchial tree
  7. 16. dome-shaped, contraction increases volume of thorax and inflates the lungs
  8. 19. cartilaginous structure used to connect the pharynx and trachea at level of the cervical vertebrae, composed of connective tissue continuing 9 pieces of cartilage in boxlike formation
  9. 22. opening to larynx
  10. 24. oval masses of lymphatic tissue on lateral aspects of pharynx behind mouth (two words)
  11. 25. tube that the larynx opens to, referred to as windpipe, 4-5 inches long in midline of neck
  12. 28. inflammation of the mucosal membrane