Pectoral (shoulder) Girdle Ligaments

Question 1

Coracoclavicular ligament Function

Answer 1

Stabilizes acromioclavicular joint limiting medial displacement, protraction and elevation.

Trapezoid: attachments from coracoid process to trapezoids line of clavicle

Conoid: attachments from coracoid process to conoid tubercle of clavicle

Question 2

Acromioclavicular ligament function and attachments

Answer 2

Function: stabilizes acromioclavicular joint

Attachments: from superior aspect of acromial end of the clavicle to adjacent acromion

Question 3

Coracoacromial function & attachments

Answer 3

Functions: prevents the superior displacement of the humeral head by forming the coracoacromial arch

Attachments: from lateral border of coracoid process to acromion adjacent to clavicular articulation

Question 4

Coracohumeral function and attachments

Answer 4

Function: reinforces superoanterior aspects of joint capsule.

Attachments: from base of coracoid process to anterior aspect greater tubercle

Question 5

Costoclavicular function and attachments

Answer 5

Function: stabilizes sternoclavicular joint, limiting elevation of the clavicle

Attachments: from superior aspect of cartilage of first rib to undersurface of the clavicle

Question 6

Superior Transverse Scapular

Answer 6

Function: closes off the suprascapular notch

Attachments: from the base of the coracoid process to the medial edge of the scapular notch

Question 7

Glenoid Capsule

Answer 7

Attachments: from the circumference of glenoid cavity to anatomical neck of the humerus

Question 8

Glenohumeral (three ligg; superior, middle, inferior)

Answer 8

Function: stabilizes glenohumeral articulation

Attachments: from upper part of medial margin of glenoid cavity to lesser tubercle & anatomical neck