FEOG 239 



branch, the inferior maxillary vein, comes 

 from the margin of the lower jaw. What is the 

 course of each vein? Find the two branches 

 which unite to form the subclavian vein ; one, the 

 brachial vein, comes from the fore limb, and 

 the other, the musculo-cutaneous vein, comes 

 from the skin and muscles of the side and back 

 of the body. The branches of the innominate 

 vein are the internal jugular, which appears 

 immediately behind the angle of the jaw, and the 

 subscapular vein, lying among the muscles of 

 the shoulder. From what parts of the body does 

 the blood come which enters the sinus venosus 

 through the anterior venae cavee ? 

 Make a diagram of the veins which communicate with 

 the anterior venze cavse. 



I. The posterior vena cava. — Displace the ali- 

 mentary canal by cutting across the oesophagus 

 and turning the entire system downward over the 

 pubis, cutting the mesentery wherever necessary. 

 In which direction does this vein run ? How does 

 it compare in diameter with the anterior venae 

 cav£e ? Trace the vein towards the posterior 

 end of the body and find coming from the liver 

 the hepatic veins. How many are there ? At 

 what point do they enter the vena cava? Far- 

 ther back find the renal veins, entering from the 

 kidneys along with the genital veins from the 

 ovaries or testes, as the case may be. How many 

 renal veins do you find? How many genital? 

 Which are the larger? 

 Make a diagram of the posterior vena cava and the 

 connecting veins. 



