156 



PRACTICAL ANATOMY. 



(Fig. 105.) The ulnars converge to form the basilic vein above the elbow. 

 The medians converge to form one large vein. This vein breaks up into the 

 median ccpJialic and median basilic, which join respectively the cephalic and 

 basilic veins. (Fig. 105.) 



Observe that the internal cutaneous nerve passes behind the median basilic 

 vein ; that the cutaneous branch of the musculo-cutaneous nerve passes behind the 

 median cephalic vein. (Fig. 105.) 



Find the deep median vein, piercing the deep fascia near the bifurcation of 



SEMILUNAR 



ISIFORM 

 EIFORM 



Extensor carpi 

 radialis longior 



Extensor carpi 

 radialia brevier 



Extensor carpi ulnarii 



Extensor oommunis digitorum 



Extensor oommunis digitorum 

 THIRD, UNGUAL, OR TERMINAL PHALANX 



FIG. 108. THE LEFT HAND. (Dorsal surface.) 



the superficial median vein. Trace it to the ulnar vein below the deep fascia. 

 (Fig. 105.) 



Note that the median basilic vein crosses the lower part of the bracliial 

 artery. Notice also the bicipital fascia between these two structures. (Fig. 

 105.) This vein was formerly a favorite in bleeding. The basilic vein termin- 

 ates in the axillary ; the cephalic in the axillary vein also. Find the cephalic 

 vein in a groove between the pectoralis major and deltoid muscles with the 

 'Irscending branch of the acromio-thoracic artery below the clavicle. 



