Objective 9
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Objective 9. Compare and contrast the three major categories of joints. Give an example of each. Joints. Articulations of bones Functions of joints Hold bones together Allow for mobility Ways joints are classified Functionally Structurally. Functional Classification of Joints.

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Objective 9
Objective 9

Compare and contrast the three major categories of joints. Give an example of each.


Joints
Joints

  • Articulations of bones

  • Functions of joints

    • Hold bones together

    • Allow for mobility

  • Ways joints are classified

    • Functionally

    • Structurally


Functional classification of joints
Functional Classification of Joints

  • Synarthroses – “together joint”

    • immovable joints, skull

  • Amphiarthroses – “both side joint”

    • slightly moveable joints, wrist

  • Diarthroses – “2 (direction) joint”

    • freely moveable joints, all movements


Fibrous joints
Fibrous Joints

  • Bones united by fibrous tissue

  • Examples

    • Sutures

      • In skull

      • Between tibia & fibula

Figure 5.27a–b


Cartilaginous joints
Cartilaginous Joints

  • Bones connected by cartilage

  • Examples

    • Intervertebral joints

    • Pubic symphysis (pelvis)

Figure 5.27d–e


Synovial joints
Synovial Joints

  • Articulating bones are separated by a joint cavity

  • Synovial fluid is found in the joint cavity

Figure 5.24f–h


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