The shoulder joint is a ballandsocket joint formed by the head of the humerus and the scapula Selected Joints of the Body The elbow joint is a hinge joint formed by the humerus the ulna and the radius ID: 775489
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Slide1
Selected Joints of the Body
The
shoulder joint
is a ball-and-socket joint formed by the head of the humerus and the scapula.
Slide2Selected Joints of the Body
The elbow joint is a hinge joint formed by the humerus, the ulna, and the radius.
Slide3Selected Joints of the Body
The hip joint is a ball-and-socket joint formed by the femur and the
os coxae.
Slide4Selected Joints of the Body
The knee joint is a modified hinge joint. It is the largest and most complex joint of the body.
Slide5Selected Joints of the Body
The knee joint
Slide6Selected Joints of the Body
The knee joint
Slide7Selected Joints of the Body
The knee joint
Slide8Aging and Arthroplasty
The effect of
aging
on joints varies considerably from person to person. By age 80, almost everyone develops some type of degeneration in the knees, elbows, hips, and shoulders.
Osteoarthritis
is at least partially age-related.
Aging results in thinning of the articular cartilage and decreased production of synovial fluid in joints.
Ligaments shorten and lose elasticity.
Slide9Joint arthroplasty is the surgical implantation of an artificial joint. The most commonly replaced are the hips, knees, and shoulders.
Partial hip replacements involve only the femur, while total hip replacements involve both the acetabulum and head of the femur.
Aging and Arthroplasty
Slide10Aging and Arthroplasty
Slide11Aging and Arthroplasty
Potential complications of arthroplasty include infection, blood clots and nerve injury.
Slide12Aging and Arthroplasty
Components of an artificial knee
Slide13End of Chapter 9
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