THE ENDOCRINE SYSTEM 



621 



Brain 



Rathkc's 

 poucVi 



InFund i biilum 



RathKe's 

 pozich 



B 



Third ventricle 

 Pars tuber all s 



Anl. lobe 



Post, lobe 



Centred cavity 



Intermediate lobe 



Figure 30.6. The development of the pituitary gland. A, Sagittal section through 

 head of young embryo. B-F, Sagittal sections of successive stages of developing pituitary 

 gland. 



Hypothalamic -hypophyseal 

 ■n<z-rve tracts 



Supraoptic nucleus 

 Optic chiasraa.- 



Internal carotid 

 artery 



J 



Infundibular stalk. 



erior cerebral 

 'tery 



Figure 30.7. Blood supply of the pituitary gland. 



