VEINS. OF THE UPPER EXTREMITIES. 259 



frequent anastomoses, and they, finally, assemble into two prin- 

 cipal branches called the Cephalic and the Basilic Vein. 



The Cephalic Vein ( Vena Cephalica, Badialis Cutanea) 

 is the trunk which comes from the thumb and from the'Tore 

 finger, and has at first the name of Cephalica Pollicis. It 

 ranges along the anterior and radial margin of the fore arm, 

 and receives, continually, an augmentation from small collateral 

 branches on the back of the fore arm. Having reached the 

 bend of the arm, it then ascends along the external margin of 

 the biceps flexor cubiti till it reaches the lower margin of the 

 pectoralis major muscle; it then rises superficially along the in- 

 terstice between this muscle and the deltoid, to within eight or 

 ten lines of the clavicle, where it dips down to join the axillary 

 vein. Along the arm, it receives some small secondary cuta- 

 neous branches. 



t 



The Basilic Vein (Vena Basilica, Cubitalis Cutanea) is 

 larger than the cephalic, and begins by the trunk which comes 

 from the ulnar side of the back of the hand, and is first called 

 the Vena Salvatella. On the fore arm, the basilic frequently 

 consists in two long trunks, the anterior and the posterior; in 

 this case, the posterior is the principal one, and runs along the 

 internal posterior edge of the ulna until it comes to the bend of 

 the arm; it then mounts over the latter, rising obliquely in front 

 of the internal condyle. The anterior branch begins near the 

 palm of the hand, runs up in front of the ulnar side of the fore 

 arm, and discharges itself into the median basilic vein over the 

 brachial artery in front of the bend of the arm. These two 

 trunks, or one as the case may be, receive the cutaneous veins 

 belonging to the ulnar side of the fore arm. 



Above the elbow joint, the basilic gets below the fascia of 

 the arm at the inner edge of the biceps, and about the middle 

 of the arm becomes, by its junction with the venoe satellites, 

 the Brachial Vein; but sometimes, as mentioned, this junction 

 occurs much higher up. 



The Median Vein (Vena Mediana] arises, by branches, from 

 the wrist, from the palm of the hand, and from the middle ol 

 the front of the fore arm. It forms a trunk which ascends in 



