BIO 201 Exam I Key Terms - Skeletal System

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Across
  1. 3. knobby, enlarged regions at ends, strengthen joints, attachment site for tendons/ligaments
  2. 8. suture between occipital and parietal bones
  3. 9. strainer-like
  4. 12. smooth surfaces where bones meet
  5. 13. cylindrical space in diaphysis, contains yellow bone marrow in adult
  6. 14. elongated, usually cylindrical shaft
  7. 15. compact and spongy bone
  8. 21. process by which minerals deposited in the matrix as hydroxyappetite
  9. 24. tissues that grow and change throughout life, consisting of cartilages, bones, ligaments, and other supportive connective tissues
  10. 27. between diaphysis and epiphysis, containing epiphysial (growth) plate
  11. 29. horn
  12. 30. immovable joints between skull bones
  13. 32. infant cranial bones are connected by flexible areas of dense regular connective tissue
  14. 33. thin layer of hyaline cartilage on epiphyses, reduces friction between articulating bones
  15. 34. living organs containing all four tissues types, primarily connective tissues, extracellular matrix is sturdy and rigid, strengthened by calcification
  16. 35. shell
  17. 36. suture between parietal bones
  18. 37. bone cells that maintain matrix and reside in lacunae, involved in remodeling
Down
  1. 1. depression found in bone
  2. 2. category of the skeletons comprised of shoulder and hip bones and those of the upper and lower extremities (126 bones)
  3. 4. suture between temporal and parietal bones
  4. 5. dense irregular connective tissue covering external surfaces of bones, acts as anchor for blood vessels and nerves, anchored by perforating fibers embedded in the bone matrix
  5. 6. 3 tiny bones in each middle ear for hearing
  6. 7. bone tissue that is solid and relatively dense, external surfaces of long and flat bones
  7. 10. basic structural unit of mature compact bone
  8. 11. concentric, cylindrical structures
  9. 16. category of the skeleton comprised of the skull, vertebral column, and thoracic cage (80 bones)
  10. 17. formation of new blood cells
  11. 18. cavity or hollow place, curved space
  12. 19. suture between frontal and parietal bones
  13. 20. bone tissue that is made of trabeculae, internal surface of bones
  14. 22. open lattice of narrow plates
  15. 23. covers most internal surfaces of bones
  16. 25. bone cells that dissolve bone, releasing calcium, resorption, involved in remodeling
  17. 26. hole in something
  18. 28. wing-like
  19. 31. smooth surface when two bones articulate