22: Arthrology: Shoulder and Arm Flashcards
Sternoclavicular joint type
Sellar synovial
Two parts of an articular capsule (present in the joints discussed)
Fibrous capsule, synovial membrane
Costoclavicular L
From sternal end of clavicle -> 1st rib
Anterior and posterior sternoclavicular L’s
Thickened fibrous capsule on anterior/posterior aspect of sternoclavicular joint
Interclavicular L
From sternal end of clavicle -> other clavicle
AC joint type
Planar synovial joint
Two main ligaments of the AC joint
- Acromioclavicular L
2. Coracoclavicular L
Two parts of the coracoclavicular L and what they attach to
Trapezoid L: trapezoid line -> coracoid process
Conoid L: conoid tubercle -> coracoid process
What is referred to with a “shoulder separation”?
AC joint separation
GH joint type
Spheroidal synovial joint
Why is the fibrous capsule of the GH joint open in two places? (two reasons)
- Allow biceps brachii T passage
2. Communicate with subscapular bursa
Two bursae of the GH joint
- Subscapular bursa
2. Subacromial bursa
Four ligaments around the GH joint
- Glenohumeral L
- Coracohumeral L
- Transverse humeral L
- Coracoacromial L
Glenohumeral L
Glenoid labrum -> anatomical humeral neck (blends with fibrous capsule)
Coracohumeral L
Base of coracoid process -> anterior edge of greater tubercle of humerus