662 



panied by the deltoid 

 clavicular fascia and 

 below the clavicle. 



Cephalic vein 



ANGIOLOGY 



branch of the thoracoacromial artery. It pierces the coraco- 

 , crossing the axillary artery, ends in the axillary vein just 

 Sometimes it communicates with the external jugular vein 



by a branch \vhich ascends in front 

 of the clavicle. 



The accessory cephalic vein (v. 

 cephalica accessorial arises either 

 from a small tributory plexus on 

 the back of the forearm or from 

 the ulnar side of the dorsal venous 

 net-work; it joins the cephalic be- 

 low the elbow. In some cases the 

 accessory cephalic springs from 

 the cephalic above the wrist and 

 joins it again higher up. A large 

 oblique branch frequently con- 

 nects the basilic and cephalic veins 

 on the back of the forearm. 



The basilic vein (v. basilica) 

 (Fig. 574) begins in the ulnar part 

 of the dorsal venous network. It 

 runs up the posterior surface of 

 the ulnar side of the forearm and 

 inclines forward to the anterior 

 surface below the elbow, where it 

 is joined by the vena mediana 

 cubiti. It ascends obliquely in 

 the groove between the Biceps 

 brachii and Pronator teres and 

 crosses the brachial artery, from 

 which it is separated by thelacertus 

 fibrosus; filaments of the medial 

 antibrachial cutaneous nerve pass 

 both in front of and behind this 

 portion of the vein. It then runs 

 upward along the medial border 

 of the Biceps brachii, perforates 

 the deep fascia a little below the 

 middle of the arm, and, ascending 

 on the medial side of the brachial 

 artery to the lower border of the 

 Teres major, is continued onward 

 as the axillary vein. 



The median antibrachial vein 

 (v. mediana antibrachii) drains the 

 venous plexus on the volar surface 

 of the hand. It ascends on the 

 ulnar side of the front of the fore- 

 arm and ends in the basilic vein or 

 in the vena mediana cubiti; in a 

 small proportion of cases it divides 

 into two branches, one of which 

 joins the basilic, the other the 

 cephalic, below the elbow. 



Basilic vein 



Vena mediana 

 cubiti 



Basilic vein 



Medial anti- 

 brachial cutane- 

 ous nerve 

 Median anti- 

 brachial vein 



Fro. 574. The superficial veins of the upper extremity 



