268 



PARTICULAR LIGAMENTS. 



CHAPTER VI. 



OF PARTICULAR LIGAMENTS, AND OF THE SITUATION OF 

 THE INDIVIDUAL BURS^ MUCOSA. 



Enumeration of the most important Ligaments, which have not been described. 



Ligaments proper to the Scapula. 



The triangular ligament (ligamentum coraco-acromialis) 

 arises broad from the external surface of the coracoid process, 

 and becomes narrower where it is fixed to the posterior margin 

 of the acromion. It confines the tendon of the supra-spinatus 

 muscle, and assists in protecting the upper and inner part of the 

 joint of the humerus. 



The posterior ligament of the scapula (coracoid) is some- 

 times double, and is stretched across the semilunar notch of 

 the scapula, forming that notch into one or two holes for the 

 passage of the superior posterior scapulary vessels and nerves. 

 It also gives rise to part of the omo-hyoideus muscle. 



The Interosseous Ligament of the Forearm, 



Extends between the sharp ridges of the radius and ulna, 

 filling up the greater part of the space between these two 

 bones, and is composed of small fasciculi, or fibrous slips, which 

 run obliquel)'- downwards and inwards. Two or three of these, 

 however, go in the opposite direction, and one of them, termed 

 oblique ligament and chorda transversalis cubiti, is stretched 

 between the tubercle of the ulna and under part of the tubercle 

 of the radius. In different parts of the ligament there are 

 perforations for the passage of blood-vessels from the fore to 

 the back part of the bone, and a large opening is found at the 

 upper part of it which is filled up by muscles. It prevents the 

 radius from rolling too much outwards, and furnishes a com- 

 modius attachment for muscles. 



