70 



TOPOGRAPHICAL ANATOMY OF 



aspect of the joint, where it is reinforced by oblique fibres ; but behind, 

 where it is supported by the anconeus and triceps muscles, it is much 

 weaker and more membranous. The capsule is very firmly adherent 

 to the tendons of the various muscles that are inserted to the 

 proximal end of the radius, and to those that take origin from the 

 distal end of the humerus; and its synovial lining is continued for 

 a short distance along the tendons of origin of the flexors of the 



lledial epicondyle ol humerus. 



Olecranon. 



Lig. coUaterale 

 mediale (short). 



Lig. transversum. 



il. brachialis. 



Lig. coUaterale 

 mediale (long). 



Fig. 49. — Medial Aspect of the Elbow Joint. 

 The red line indicates the line of attachment of the synovial lining of the joint caps\ile. 



carpus and digit, as well as into the small articulations between the 



head of the radius and the ulna. 



The medial collateral ligament (ligamentum coUaterale mediale) 



springs from the depression and prominence close to the articular 



margin of the humerus, and is divisible into two parts. The longer 



and more superficial (and more anterior) portion is attached to the 



medial border of the shaft of the radius; while the shorter, stronger, 



deeper, and more posterior part of the ligament ends on the prominence 



at the medial part of the head of the radius. The most distal fibres 



of the tendon of insertion of the brachialis muscle pass between the 



two parts of the ligament. 



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