Respiratory System 2

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Across
  1. 3. Inner layer of muscularis externa that constricts the lumen during digestion
  2. 5. Lining tissue of the digestive tract specialized for protection secretion or absorption depending on the region
  3. 9. Connective tissue layer containing blood vessels nerves and glands that supports the mucosa
  4. 12. Largest salivary gland located near the ear that produces mostly serous saliva rich in amylase
  5. 16. Front teeth specialized for cutting and biting food
  6. 18. Passageway lined by alveoli that conducts air toward alveolar sacs
  7. 19. Hardest substance in the body covering the crown of the tooth and protecting it from wear
  8. 20. Airway epithelium that helps move mucus while allowing efficient air conduction
  9. 21. Connective tissue layer beneath epithelium containing blood vessels immune cells and glands
  10. 22. Thin epithelial tissue that minimizes diffusion distance for oxygen and carbon dioxide exchange
  11. 30. Structures in the oral cavity that mechanically break down food during mastication
  12. 32. Narrow canal within the root carrying nerves and vessels to the pulp cavity
  13. 33. Microscopic air sacs that serve as the primary sites of gas exchange
  14. 34. Small conducting airways lacking cartilage and lined by simple ciliated epithelium
  15. 35. Phagocytic cell within alveoli that removes debris pathogens and dust particles
  16. 38. Thin smooth muscle layer that creates local movements of the mucosa for absorption and secretion
  17. 42. Gum tissue surrounding the teeth and protecting the tooth roots
  18. 43. Calcified tissue beneath enamel forming the bulk of the tooth
  19. 44. Peritoneal fold connecting the stomach and liver carrying vessels to these organs
  20. 45. Cuboidal alveolar cell that secretes surfactant to reduce surface tension and prevent alveolar collapse
Down
  1. 1. Serous membrane lining the abdominal cavity wall
  2. 2. Salivary gland beneath the tongue that produces mostly mucous saliva for lubrication
  3. 4. Constricted region of the tooth at the junction of crown and root near the gingiva
  4. 6. Smooth muscle sphincter between esophagus and stomach that prevents acid reflux
  5. 7. Muscular posterior roof of the mouth that closes the nasopharynx during swallowing
  6. 8. Outer layer of muscularis externa that shortens the digestive tract during peristalsis
  7. 10. Serous membrane covering abdominal organs and reducing friction
  8. 11. Accessory digestive glands that produce saliva to lubricate food begin starch digestion and protect the mouth
  9. 13. Salivary gland beneath the mandible that produces mixed serous and mucous saliva
  10. 14. Muscular tube connecting pharynx to stomach that transports food by peristalsis
  11. 15. Thin squamous alveolar cell that forms most of the respiratory membrane for gas exchange
  12. 17. Innermost alimentary canal layer containing epithelium lamina propria and muscularis mucosae that protects absorbs and secretes
  13. 23. Muscular organ in the oral cavity that manipulates food forms a bolus and assists in swallowing and speech
  14. 24. Smooth muscle layer responsible for peristalsis and mixing movements in the digestive tract
  15. 25. Cluster of alveoli sharing a common chamber where gas exchange occurs
  16. 26. Pointed teeth specialized for tearing food
  17. 27. Largest posterior teeth specialized for heavy grinding of food
  18. 28. Outer visceral peritoneal covering that reduces friction between abdominal organs
  19. 29. Teeth with broad surfaces used for crushing and grinding food
  20. 31. Large fatty peritoneal fold hanging from the stomach that cushions and protects abdominal organs
  21. 36. Visible portion of the tooth above the gumline covered by enamel
  22. 37. Central chamber of the tooth containing nerves blood vessels and connective tissue
  23. 39. Midline ridge on the hard palate marking fusion of the palatal bones
  24. 40. Double layer of peritoneum that suspends intestines and carries vessels nerves and lymphatics
  25. 41. Bony anterior roof of the mouth separating oral and nasal cavities during chewing