CHAPTER VI. 

 THE REGION OF THE ELBOW. 



ANATOMY. FRACTURES. 



PHLEBOTOMY. DISLOCATIONS. 



BURSAE. EXCISION. 

 ELBOW JOINT. 



Anatomy. The superficial structures in the region 

 of the elbow are the skin, the superficial and deep 

 fasciae, superficial veins and the following nerves, viz.: 

 The cutaneous branches of the musculo-cutaneous and 

 the internal cutaneous nerves in front the lesser internal 

 cutaneous nerve internally, and the lower external cuta- 

 neous branch of the musculo-spiral behind. The deep fascia 

 covers in, and surrounds, the muscles of the forearm, as it 

 does in the case of the arm, and receives fascial expan- 

 sions from the tendons of the triceps and biceps muscles, 

 as mentioned above. It is attached to the bony promi- 

 nences in the neighborhood of the elbow joint, viz., to 

 the internal and external condyles and to the olecranon. 

 Beneath the deep lascia and in front of the elbow is 

 a triangular space bounded, externally, by the supinator 

 longus and, internally, by the pronator radii teres; 

 the apex of the triangle is formed by the convergence 

 of these muscles, while an imaginary line joining 

 the two condyles forms the base. This triangle contains, 

 along its outer side, the musculo-spiral nerve and the 

 radial recurrent artery, the latter anastomosing with the 

 superior profunda artery. Along the inner side of the 

 triangle is the anterior ulnar recurrent artery running up- 

 wards to communicate with the inferior profunda and the 

 anastomotica magna arteries, while in front and about 

 the middle of the space are the median nerve, the brach- 



