vertebrae separated by intervertebral discs shock absorbers prevents bone to bone contact ...
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Lecture 6.10: Skeletal System
Vertebrae separated by intervertebral discs Shock Absorbers Prevents bone to bone contact Herniated disc Disc extends outwards Reduces disc function
Intervertebral Articulations
Figure 6.36
Shoulder Joint Greatest motion in body Most dislocated joint Bursitis—inflammation of bursa Restrict motion Painful Elbow Joint—Extremely stable
Upper Limb Articulations
Figure 6.37
Hip Joint Absorbs shock Denser and stronger than shoulder Extremely stable Less movement than shoulder
Lower Limb Articulations
Figure 6.39b
Figure 6.39a
Usually 60+ Osteoporosis weakens femur Usually occurs with hip dislocation or pelvic
fractures Takes long time to heal
Hip Fractures
Medial and lateral menisci—cushion Bursae—reduce friction Patellar ligament—supports
Knee Joint
Figure 6.40a
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