ELBOW JOINT 



197 



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

 which bridges across the notch between the olecranon and 

 the coronoid process, to both of which it is attached. 



The annular ligament and the oblique cord will be 

 described later (see pp. 202-204). 



Stratum Synoviale (Synovial Membrane). The joint 

 should be opened by making a transverse incision through the 

 anterior part of the capsule. The synovial stratum will be 

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



Interosseous Coronoid 



membrane Radius process 



Ulna 



Medial epi- 

 condyle 



Anterior part of 

 ulnar collateral 

 ligament 

 Posterior part of 

 ulnar collateral 

 ligament 

 Olecranon 



\ 



Transverse part of ulnar 

 collateral ligament 



FIG. 84. Medial aspect of Elbow Joint. 



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 olecranon fossa. In the fossae a quantity of 

 soft oily fat is developed between the bone and the synovial 

 stratum. In that way pliable pads are formed which occupy 

 the recesses when the bony processes are withdrawn from 

 them. 



Distally, the synovial stratum of the elbow joint is prolonged 

 into the proximal radio-ulnar joint, so that both articulations 

 possess a single, continuous synovial cavity. 

 1136 



