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Questions and Answers
What contributes to the shoulder joint's high level of mobility?
What contributes to the shoulder joint's high level of mobility?
- The presence of many ligaments
- The scapulothoracic movement (correct)
- The size of the joint capsule
- The lack of articulating surfaces
What is the role of ligaments in the shoulder joint?
What is the role of ligaments in the shoulder joint?
- To limit range of motion
- To provide stability (correct)
- To increase mobility
- To control compensatory movements
What can happen if ligaments in the shoulder joint become stretched or torn?
What can happen if ligaments in the shoulder joint become stretched or torn?
- Increased range of motion
- Decreased range of motion (correct)
- Improved stability
- No effect on joint function
Which ligament is stretched with backward rotation or anterior translation of the humerus?
Which ligament is stretched with backward rotation or anterior translation of the humerus?
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How many parts does the inferior ligament have?
How many parts does the inferior ligament have?
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What can overstretching of ligaments in the shoulder joint lead to?
What can overstretching of ligaments in the shoulder joint lead to?
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What is important for preventing pathology in the shoulder joint?
What is important for preventing pathology in the shoulder joint?
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How does the size of the joint capsule in the shoulder compare to other joints?
How does the size of the joint capsule in the shoulder compare to other joints?
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What is subluxation?
What is subluxation?
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What is the main function of ligaments in the shoulder joint?
What is the main function of ligaments in the shoulder joint?
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Study Notes
- The shoulder joint is very mobile due to articulating surfaces and scapulothoracic movement.
- Ligaments in the shoulder joint are complex and contribute to stability.
- Ligaments can become stretched or torn, limiting range of motion or causing dislocation.
- The superior ligament is stretched with backward rotation or anterior translation of the humerus.
- The inferior ligament has three parts and allows for full range of motion.
- Overstretching of ligaments can lead to subluxation or dislocation.
- Regeneration of ligaments after complete tear is not always successful.
- Stability factors are important to prevent pathology.
- Joint capsule in the shoulder is larger than in other joints.
- Mobility in the shoulder can lead to compensatory movements.
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