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Name: _________________________________
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BIO 201 Assignment #3: Skeletal System
* Only turn in completed puzzle, not second page with clues
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Across
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1. inner crossing knee ligament stabilizing when knee
is flexed (abbrev.)
3. ___ bifida, incomplete closure of spinal column
4. ___-class, most common type of musculoskeletal
lever
5. ___osis, abnormal swayback curvature
6. tissue that covers articular surfaces
9. osteo____, severe loss of bone density
10. fluid-filled cushion protecting joint capsule
13. osteo___, bone-dissolving cell
15. fibrocartilage pad between bones of knee
18. active form of vitamin-D
19. cuff, four muscles that stabilize shoulder joint
21. ___ation, dislocation of a joint
26. ___arthrosis, immovable joint
28. ___osis, abnormal hunchback curvature
29. shaft of a long bone
31. collateral ligament, also called medial
33. hole through a bone
36. ___arthrosis, freely movable joint
37. number of cervical vertebrae
38. arthritis due to uric acid precipitates in synovial
fluid
40. tree-ring like layers of bone cells in bone tissue
43. osteo___, mature bone-maintaining cell
44. inner crossing knee ligament stabilizing when knee
is extended (abbrev.)
2. ___iculi, tiny connections between osteocytes
3. immovable joints of skull
4. sella ___, houses pituitary gland
6. ___synostosis, premature closure of cranial sutures
7. end of a long bone
8. number of lumbar vertebrae
11. bone marrow where all blood cells originate
12. rounded knuckle-like boney process
13. galli, boney ridge on ethmoid bone
14. ongoing process of bone dissolution
16. large air-filled space inside several bones of skull
17. type of bone tissue containing red bone marrow
18. set of bones encasing brain
20. ___arthrosis, partly-movable joint
22. ___membranous ossification, for flat bone
development
23. bat-shaped bone, "keystone" bone of skull
24. ___osteum, sheath of fibrous tissue covering bone
25. ___osis, abnormal lateral spinal curvature
27. organic ground substance of bone tissue
30. most common type of joint, surrounded by a
capsule
32. osteo___, bone-making cell
34. ___arthritis, wear-and-tear joint disorder
35. ___chondral ossification, for long bone
development
39. bone marrow composed mostly of adipose
41. hole or chamber where osteocyte resides
42. hormone that raises blood calcium (abbreviation)