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chap 6 shoulder gird
shoulder girdle
| Question | Answer |
|---|---|
| shoulder girdle | connects upper limbs to trunk of body |
| shoulder girdle consists of | clavicle and scapula |
| what are the 3 articulations in the shoulder girdle | shoulder joint, SCJ, ACJ |
| shoulder joint | scapula and head of humerus. articulates w/ glenoid cavity |
| SCJ | sternoclavicular joint, synovial gliding joint between the sternum and clavicle |
| ACJ | acromionclavicular, synovial double gliding joint w/ articulates w/ acromion and clavicle |
| clavicle | long bone |
| location | upper thorax |
| acromial extremity | acromial/lateral/ ACJ |
| sternal extremity | medial/ sternal/ SCJ |
| body | conoid tubercle (conoid ligament) |
| clavicle function | has double curvature for strength |
| who has a more prominent curvature men or female | men |
| the coracoid attaches to coronoid tubercle via | tendon |
| lymph nodes are found in what | the curves |
| scapula | flat bone and undergoes intermembranous ossification |
| shape | triangular |
| location | posterior portion of shoulder girdle, lies against lateral portion of chest. anterior portion is at t7 |
| what are the 3 aspects of the scapula/ costal (anterior) aspect | in contact w/ ribs. 1. coracoid - no bony articulation 2. scapula notch = surgeans light house 3. subscapular fossa - subscapularis muscle |
| scapula/dorsal (posterior) aspects | crest of spine- an extension of the acromion suprasinous fossae= suprspinatus (m) infra spinous fossae= infraspinatus (m) acromion process- roughed end of the crest of the spine |
| scapula/ lateral aspect | glenoid cavity (surface) corocoid sits anterior acromion sits posterior |
| what are the 3 borders of the scapula | lateral= axillary medial= vertebral border superior |
| muscle for lateral border of scapula | teres minor |
| muscle for medial border of scapula | anterior serratus |
| does the superior border have a muscle T or F | false, no muscle however the scapular notch is located at the superior border |
| what are the 3 angles of the scapula | superior, inferior (teres major), and lateral |
| what are the 3 joints of the scapula | scapulohumeral(shoulder joint), acrioclavicular, and sternoclavicular |
| scapulohumeral | shoulder joint, @ glenoid cavity and humeral head which is a synovial ball and socket joint |
| acrioclavicular/ACJ | acromion and acromial extremity of clavicle which is a synovial gliding joint |
| sternoclavicular/ SCJ | manubrium and sternal extremity of clavicle which is also a synovial gliding joint |
| bursae | synovial fluid filled sac that reduces friction, relieves pressure and are found between bone and skin, ligaments,muscles or tendons |
| what is the largest bursae of shoulder | subacromial which is just below the acromion |
| bursitis | found @ shoulder joint which is inflammation of the bursae |
| dislocation | totally out of joint |
| subluxation/ luxation | slippage |
| hills sachs defect | impacted fracture seen in proximal humerus |
| metastases | cancer which may appear as less dense areas |
Created by:
eckoultd1972
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