(1) Hypophyseo-portal 

 vessel 



(2) Carotid artery 



(3) Hypophyseal artery 



(4) Small artery for pars 

 tuberalis 



) Small artery for tuber 

 cinereum 

 (f)) Posterior communicat- 

 ing artery 



(7) Posterior cerebral 

 artery 



(8) Small arteries for in- 

 fundibnlum 



(9) Cavernous sinus 



(10) Hypophyseal vein 



(11) Small hyiiophyseal 

 veins 



(12) Hasal vein 



(13) Sinusoids 



(14) Heavy ulial sheaths of 

 the hypophyseo-portal 

 veins 



(15) Secondary distribution 

 net 



(A) Pars anterior of pitu- 

 itary 



(P) Pars posterior of pitu- 

 itary 



(I) Pars intermedia of pi- 

 tuitary 



(5) Stalk 



Fig. 4. — The blood vessels of the human pituitary body. From Popa and Field- 

 ing (1930)- 



