1. The Skeletal System
Chapter 3

2. Overview of Structures, Combining Forms, and Functions of the Skeletal System

3. Bones Primary Function Related Word Parts (Combining Forms)
Act as the framework for the body
Protect the internal organs
Store the mineral calcium
Related Word Parts (Combining Forms)
oss/e, oss/i
oste/o, ost/o
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4. Bones
Typical Long Bone
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5. Bones
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6. Bones
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7. Bones
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8. Bones
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9. Bones
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10. Bones
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11. Bone Marrow Primary Function Related Word Parts (Combining Forms)
Red bone marrow forms some blood cells.
Yellow bone marrow stores fat.
Related Word Parts (Combining Forms)
myel/o (also means spinal cord)

12. Cartilage Primary Function Related Word Parts (Combining Forms)
Creates a smooth surface for motion within the joints
Protects the ends of the bones
Related Word Parts (Combining Forms)
chondr/o

13. Joints Primary Function Related Word Parts (Combining Forms) arthr/o
Work with the muscles to make a variety of motions possible
Related Word Parts (Combining Forms)
arthr/o
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14. Joints
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15. Ligaments Primary Function Related Word Parts (Combining Forms)
Connect one bone to another
Related Word Parts (Combining Forms)
ligament/o
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16. Ligaments
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17. Synovial Membrane Primary Function
Forms the lining of synovial joints
Secretes synovial fluid
Related Word Parts (Combining Forms)
synovi/o, synov/o

18. Synovial Fluid Primary Function Related Word Parts (Combining Forms)
Lubricant that makes smooth joint movements possible
Related Word Parts (Combining Forms)
synovi/o, synov/o

19. Bursa Primary Function Related Word Parts (Combining Forms)
Cushions areas of joints that are subject to friction during movement
Related Word Parts (Combining Forms)
burs/o

20. Key Word Parts and Definitions
ankyl/o
crooked, bent, stiff
arthr/o
joint
chondr/i, chondr/o
cartilage
cost/o
rib
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21. Key Word Parts and Definitions
crani/o
skull
-desis
to bind, tie together
kyph/o
bent, hump
lord/o
curve, swayback bent
(continues)

22. Key Word Parts and Definitions
-lysis
loosening or setting free
myel/o
spinal cord, bone marrow
oss/e, oss/i, ost/o, oste/o
bone
scoli/o
curved, bent
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23. Key Word Parts and Definitions
spondyl/o
vertebrae, vertebral column, backbone
synovi/o, synov/o
synovial membrane, synovial fluid
-um
singular noun ending

24. Questions

25. Question There are 15 phalanges (finger bones) in a human hand.
True or False?

26. Answer
False. The human hand has 14 phalanges.

27. Question
Nearly one-fourth of all human bones can be found in the feet.
True or False?

28. Answer
True

29. Question
Babies are born with 300 bones, but by adulthood, we have only 206.
True or False?

30. Answer
True

31. Question The largest bone in the human body is the: femur pelvis
fibula

32. a. the femur (thigh bone)
Answer
a. the femur (thigh bone)

33. Answers to Learning Exercises

34. Chapter 3 Answers Matching Word Parts 1 3.1. kyph/o
3.2. chondr/i, chondr/o
3.3. ankyl/o
3.4. arthr/o
3.5. -um
Matching Word Parts 2
3.6. crani/o
3.7. cost/o
3.8. -lysis
3.9. myel/o
desis

35. Chapter 3 Answers Matching Word Parts 3 3.11. spondyl/o 3.12. scoli/o
3.13. lord/o
3.14. synovi/o, synov/o
3.15. oste/o
Definitions
3.16. diaphysis
3.17. tarsal
3.18. manubrium
3.19. synovial joint
3.20. pubis
3.21. foramen
3.22. ligament
3.23. acetabulum
3.24. phalanges
3.25. process

36. Chapter 3 Answers Matching Structures 3.26. sternum 3.27. zygomatic
3.28. clavicle
3.29. patella
3.30. olecranon process
Which Word?
3.31. arthrolysis
3.32. fibrous dysplasia
3.33. allogenic
3.34. vertebroplasty
3.35. osteoarthritis

37. Chapter 3 Answers Spelling Counts 3.36. lumbago 3.37. osteoclasis
3.38. spondylitis
3.39. osteorrhaphy
3.40. crepitation
Abbreviation Identification
3.41. bone marrow transplant
3.42. closed reduction
3.43. fracture
3.44. rheumatoid arthritis
3.45. temporomandibular joint

38. Chapter 3 Answers Term Selection 3.46. osteonecrosis 3.47. lordosis
3.48. spina bifida
3.49. myeloma
3.50. callus
Sentence Completion
3.51. craniotomy
3.52. subluxation
3.53. arthrodesis
3.54. arthroplasty
3.55. hallux valgus

39. Chapter 3 Answers Word Surgery 3.56. hem, arthr, -osis
3.57. oste/o, chondr, -oma
3.58. oste/o, -malacia
3.59. peri-, ost, -itis
3.60. spondyl/o, -listhesis
True/False
3.61. True
3.62. False
3.63. True
3.64. False
3.65. True

40. Chapter 3 Answers Clinical Conditions 3.66. greenstick
3.67. osteomyelitis
3.68. secondary bone cancer
3.69. kyphosis
3.70. orthotic
3.71. craniotomy
3.72. autologous
3.73. chondromalacia
3.74. rheumatoid
3.75. bursitis
Which Is the Correct Medical Term?
3.76. comminuted
3.77. chondroplasty
3.78. dual x-ray absorptiometry
3.79. traction
3.80. talipes

41. Chapter 3 Answers Challenge Word Building 3.81. osteosclerosis
3.82. costectomy
3.83. chondropathy
3.84. arthrotomy
3.85. chondritis
3.86. arthrectomy
3.87. polyarthritis
3.88. osteoarthropathy
3.89. costotomy
3.90. craniomalacia
Labeling Exercises
3.91. cervical
3.92. scapula
3.93. humerus
3.94. coccyx
3.95. femur
3.96. patella
3.97. parietal
3.98. frontal
3.99. occipital
mandible