246 



THE VASCULAR SYSTEM. 



abdominalis of the J/. pectoralis ; here the vein curves round to pass 

 forwards between the fibres of this muscle to its inner border where 

 it terminates by joining- the brachial vein. In the whole of this 

 lengthy course the vein receives numerous branches from the 

 neighbouring parts. 



(2) The brachial vein 



Fig. 163. ( Vena lirachialis} is formed 



in the Plica cubiti by the 

 union of two veins. 



a. The radial vein 



(J'ena radialu] arises on 

 the dorsum of the hand 

 from a venous arch, the 

 distal convexity of which 

 receives the Venae digitals 

 dorsales : the vein courses 

 superficially along- the 

 outer side of the forearm 

 to the elbow. 



/3. The ulnar vein 

 ( Vena ulnaris) arises from 

 the veins in the palm of the 

 hand, and courses towards 

 the elbow, lying deeply 

 between the muscles of 

 the inner and outer sur- 

 faces of the forearm. In 

 the elbow the vein be- 

 comes superficial near the 

 tendon of the M. slerno- 



Veins in the region of the kidney. 



a Renal portal vein. 



a' Dorso-lumbar veins. 



abd Anterior abdominal vein. 



(I Intestine. 



/ Femoral vein. 



i Sciatic vein. 



JV Kidney. 



o Riglft ovary, drawn to the left. 



<>' Oviduct. 



ov Oviducal veins. 



p Mesenteric veins. 



r Renal veins. 



V Bladder. 



i-.f .'. Posferior^vena cava. 



Vv Vesical vems. 



ons 

 form 



cleidoradialis, and 

 the radial vein to 

 the brachial vein. 



The cutaneous veins 

 of the fore-limb follow 

 courses corresponding 

 with those of the arteries. 



2. The Posterior Caval 

 Vein (Vena cava inferior], 

 (Fig. 159 Cp, 163 v.e.1.). 



