Pectoral Region Flashcards
Sternoclavicular joint
synovial classification- sellar or saddle
Acromioclavicular joint
synovial classification- plane or gliding
Glenohumeral joint
synovial classification- ball & socket
Scapulothoracic joint
synovial classification- pseudo-joint necessary for full glenohumeral function
Coracoclavicular function
Stabilizes acromioclavicular joint limiting medial displacement, protraction & elevation
Acromioclavicular function
Stabilizes acromioclavicular joint
Coracoacromial function
Prevents the superior displacement of the humeral head by forming the coracoacromial arch
Coracohumeral function
Reinforces superoanterior aspects of joint capsule
Costoclavicular function
Stabilizes sternoclavicular joint, limiting elevation of the clavicle
Superior transverse scapular function
Closes off the suprascapular notch
Glenoid capsule function
N/A
Glenohumeral (three ligg.; superior, middle, inferior) function
Stabilizes glenohumeral articulation
Coracoclavicular attachments
Trapezoid attachments - from coracoid process to trapezoid line of clavicle
Conoid attachments- from coracoid process to conoid tubercle of clavicle
Acromioclavicular attachments
From superior aspect of acromial end of the clavicle to adjacent acromion
Coracoacromial attachments
From lateral border of coracoid process to acromion adjacent to clavicular articulation
Coracohumeral attachments
From base of coracoid process to anterior aspect greater tubercle
Costoclavicular attachments
From superior aspect of cartilage of first rib to undersurface of the clavicle
Superior transverse scapular attachments
From the base of the coracoid process to the medial edge of the scapular notch
Glenoid capsule attachments
From the circumference of glenoid cavity to anatomical neck of the humerus
Glenohumeral (three ligg.; superior, middle, inferior) attachments
From upper part of medial margin of glenoid cavity to lesser tubercle & anatomical neck
