Sternoclavicular Joint
What type of joint is the SC joint?
Saddle synovial joint
What is the blood supply for the AC joint?
Supplied by suprascapular & thoracoacromial arteries
Can Ivy think of a question?
No because this joint had so little information :(
What two bones does the GH joint articulate with?
- Scapula
- Humerus
What are the four joints associated with the pectoral girdle?
- Sternoclavicular (SC)
- Acromioclavicular (AC)
- Scapulothoracic (ST)
- Glenohumeral (GH)
What ligament anchors the inferior surface of the sternal end of clavicle to 1st rib & its costal cartilage?
Costoclavicular
What type of joint is the AC joint?
Plane synovial joint
What does the ST articulate with on the thorax?
Posterior/lateral walls
What type of joint is GH joint?
Ball & socket joint
Out of the four joints, which one serves as the only articulation between the upper limb & axial skeleton?
Sternoclavicular (SC)
What are the movements associated with the SC joint?
- Elevation/depression
- Protraction/retraction
- Rotation --> combo of other four
What rotations are associated with the AC joint?
- Upward/downward rotation
- Rotation
What type of joint is the ST joint?
Not a true joint
What four ligaments are associated with GH joint?
- Glenohumeral
- Coracohumeral
- Transverse humeral
- Coracoacromial
What bursa between acromion/coracoromial ligament/deltoid superiorly/supraspinatus tendon/joint capsule of GH joint?
Subacromial (subdeltoid) bursa
What is the blood supply for the SC joint?
Supplied by internal thoracic & suprascapular arteries
What is the nerve supply to the AC joint?
Supplied by lateral/pectoral/axillary nerves
What movements are associated with ST joint?
- Elevation/depression
- Protraction/retraction
- Rotation (upward/downward)
What movements are associated with the GH joint?
- Flexion/extension
- Abduction/adduction
- Medial/lateral rotation
- Circumduction
What bursa is between subscapularis tendon & neck of scapula?
Subtendinous bursa of subscapularis
What is the nerve supply for the SC joint?
Supplied by branches of medial suprascapular nerve & nerve to subclavius
What ligament is associated with the AC joint?
Coraclavicular ligament
The anterior surface on which bone does the ST joint articulate with?
Scapula
What is the nerve supply for the GH joint?
Supplied by suprascapular/axillary/lateral pectoral nerves
What ligament of the GH joint is associated with being extrinsic & a protective structure?
Coracoacromial ligament