THE ANATOMY OF THE PITUITARY BODY 



six times as large as that of the pars neurahs which, in this 

 respect, resembled the motor nucleus of the seventh nerve. 

 The pars intermedia contained the smallest number of capil- 

 laries. 



THE MENINGES OF THE PITUITARY BODY 



New studies of the meningeal relations of the pituitary- 

 body in the dog (Schwartz, 1936) and in a number of mam- 



Srain 



Post, clinold 

 process 

 .u ♦„. p,g.. 



arachnoid 



Subdural 

 space 



. Dura 



Mypophyais 



Fig. 1. — -The relation of the meninges to the pituitary body of the dog. Note that 

 the pia-arachnoid surrounds the stalk and pars tuberalis but not the remainder of 

 the pituitary body. (From Schwartz, Anat. Rec, 67, 35-44 [1936].) 



mals, including man and the human embryo (Wislocki, 

 1937), have been reported. The subarachnoid space encircles 

 the infundibular stalk but does not surround the pituitary 

 body proper, although it may penetrate into the sella turcica 

 a short distance in the cat and dog (see Fig. 2). The dura 

 mater extends throughout the sella turcica and constitutes 

 one layer of a fused structure consisting of periosteum, in- 

 trasellar dura, and pituitary capsule. Therefore there is no 

 subdural space. 



[5] 



