THE UPPER EXTREMITY 



attached above to the distal and dorsal part of the medial epi- 

 condyle, whilst distally it is fixed to the medial border of the 

 olecranon. The transverse part consists of a band of fibres, 

 which bridges across the notch between the olecranon and 

 coronoid process, to both of which it is attached. 



The lig. annulare and the chorda obliqua will be described 

 later (see pp. 155-157). 



Stratum Synoviale (Synovial Membrane). The joint 

 should be opened by making a transverse incision through the 



Interosseous Coronoid 



membrane Radius process 



Medial epi- 

 condyle 



Anterior part of 

 ulnar collateral 

 ligament 

 Posterior part of 

 ulnar collateral 

 ligament 

 Olecranon 



Transverse part of ulnar 

 collateral ligament 



FIG. 59. Medial aspect of Elbow-joint. 



anterior part of the capsule. The stratum synoviale will be 

 seen lining the deep surface of the capsule, from which it is 

 reflected upon the non-articular parts of the bones which 

 are enclosed within the capsule. Anterior to the humerus 

 it lines the radial and coronoid fossae, and posteriorly it is 

 prolonged proximally in the form of a loose diverticulum 

 into the oiecranon fossa. In these fossae a quantity of 

 soft oily fat is developed between the bone and the stratum 

 synoviale. In this way pliable pads are formed which occupy 

 the recesses when the bony processes are withdrawn from 

 them. 



Distally the synovial membrane of the elbow-joint is 



