Term
| Name 3 functions of the shoulder, and 3 function of the scapula |
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Definition
SHOULDER:
1. Hand placement
2. Stabilization for hand use
3. Shock absorber for arm
SCAPULA:
1. orient glenoid fossa
2. Provides stability
3. Shock absorption
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Term
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Definition
Acromioclavicular Joint:
1. acromion to distal end of clavicle
2. Strengthened superiorly by AC ligament, aponeurosis of traps, and deltoid.
3. Further stabilized by the coracoclavicular ligament below |
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Term
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Definition
Sternoclavicular Joint
1. Proximal clavicle to sternum and cartilage of 1st rib
2. Capsule is thickened by anterior and posterior SC ligaments |
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Term
| Why is the SC joint impt? |
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Definition
| it's the only bony connection btwn the humerous and axial skelton. |
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Term
| What are the clavicle movements at the SC joint? |
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Definition
Elevation/depression
Protraction/Retraction
Forward & Backward rotation |
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Term
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Definition
Glenohumeral Joint
1. Head of humerus to glenoid fossa of scapula
2. Ligamentous Reinforcements: coracohumeral, glenohumeral, and coracoacromial ligaments
3. Muscle reinforcements: above: supraspinatus, and long head of biceps. Below: long head of triceps. Anterior: subscapularis, pec major, and teres major. Posterior: infraspinatus and teres minor
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