374 



THE MALE KEPKODUCTIVE ORGANS 



divided into a number of pyramidal lobules whose bases rest upon 

 the capsule and whose apices are directed toward the mediastinum. 

 Each of these lobules contains numerous seminiferous tubules 

 which are tortuous throughout the greater part of their course, 



FIG. 304. TORTUOUS SEMINIFEROUS TUBULES OF THE RABBIT'S TESTIS. 

 Hematein and eosin. Photo, x 214. 



but become straight, tubuli recti, toward the apex of the lobule, 

 where they enter the mediastinum to become continuous with the 

 canals of the rete testis. 



The seminiferous tubules are invested with a delicate con- 

 nective tissue which forms an intralobular framework. This 



