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Questions and Answers
Which of the following statements is true about shoulder muscles?
Which of the following statements is true about shoulder muscles?
- They are all distal mobilizers.
- They are all proximal stabilizers.
- They can be categorized into proximal stabilizers and distal mobilizers. (correct)
- They have no relation to the spine, ribs, and cranium.
Where do proximal stabilizers originate from?
Where do proximal stabilizers originate from?
- The humerus and forearm
- The scapula and clavicle
- The spine, ribs, and cranium (correct)
- The bony attachments made by distal mobilizers
Which of the following is an example of a proximal stabilizer?
Which of the following is an example of a proximal stabilizer?
- Deltoid
- Biceps brachii
- Trapezius (correct)
- Serratus anterior
What is required for optimal function of the shoulder complex?
What is required for optimal function of the shoulder complex?
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Where do distal mobilizers originate from?
Where do distal mobilizers originate from?
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Which of the following is an example of a distal mobilizer?
Which of the following is an example of a distal mobilizer?
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What can be found in Appendix II, Part F of the text?
What can be found in Appendix II, Part F of the text?
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What can be found in Appendix II, Part G of the text?
What can be found in Appendix II, Part G of the text?
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Study Notes
- Shoulder muscles can be categorized into proximal stabilizers and distal mobilizers.
- Proximal stabilizers originate from the spine, ribs, and cranium and insert on the scapula and clavicle.
- Distal mobilizers originate from the scapula and clavicle and insert on the humerus or forearm.
- Optimal function of the shoulder complex requires coordinated interaction between proximal stabilizers and distal mobilizers.
- Understanding these interactions requires knowledge of bony attachments made and shared by each set of muscles.
- Appendix II, Part F lists proximal and distal attachments and nerve supply of shoulder muscles.
- Appendix II, Part G lists cross-sectional areas of selected shoulder muscles.
- Trapezius and serratus anterior are examples of proximal stabilizers.
- Deltoid and biceps brachii are examples of distal mobilizers.
- The shoulder complex is a complex system that requires careful coordination for optimal function.
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