Ligaments of the Glenohumeral Joint

Question 1

Shape and DoF: superior glenohumeral ligament

Answer 1

slender ligament
runs laterally - parallel to tendon of long head of biceps

on the anterior joint

Question 2

Shape and DoF: middle glenohumeral ligament

Answer 2

runs laterally
on anterior joint
below but continuous with superior GH ligamnet

Question 3

Shape and DoF: inferior glenohumeral ligament

Answer 3

runs laterally on anterior joint

well developed ligament
forms a sling under head of humerus

Question 4

Shape and DoF: coracohumeral ligament

Answer 4

strong broad band

runs laterally to become flattened

Question 5

Shape and DoF: coracoacromial ligament

Answer 5

strong, triangular ligament

anterior and posterior borders are thicker than the intermediate part

Question 6

Attachments: superior glenohumeral ligament

Answer 6

from upper part of glenoid margin and adjacent labrum (anterior to tendon of long head of biceps)

to upper surface of lesser tubercle

Question 7

Attachments: middle glenohumeral ligament

Answer 7

bellow superior ligament on upper glenoid margin and labrum

to humerus on front of lesser tubercle - below insertion of subscapularis

Question 8

Attachments: inferior glenohumeral ligament

Answer 8

from glenoid margin (below the notch) & anterior border of glenoid labrum

to anterioinferior part of anatomical neck humerus

Question 9

Attachments: transverse humeral ligament

Answer 9

at the upper end of intertuberclar groove

bridges the gap between greater and lesser tubercles

Question 10

Attachments: coracohumeral ligament

Answer 10

from lateral border of coracoid process

Anterior band blends with JC

Posterior band blends with supraspinatus tendon - attaching to UPPER facet of GREATER tubercle

Question 11

Attachments: coracoacromial ligament

Answer 11

broad base from lateral border of coracoid process

blunt apex attaches to apex of acromion - anterior to AC joint

Question 12

Function: Glenohumeral ligaments

Answer 12

reinforce the anterior joint capsule

taut in lateral rotation

middle and inferior ligaments taut in abduction

Question 13

Function: transverse humeral ligament

Answer 13

holds the biceps tendon in the intertubecular groove to prevent bow stringing

Question 14

Function: coracohumeral ligament

Answer 14

blends with the joint capsule - takes the weight of the arm, inferior JC support

holds down the long head of biceps - stops the superior migration of HoH

Question 15

Function: coracoacromial ligament

Answer 15

Forms the fibroosseous arch - limits superior displacement

increases SA for head of humerus in glenoid when upwards force along humerus