XXXII.] TISSUES OF REPRODUCTION. 341 



round the greater part of the testis firmly 

 connected with the underlying tissue, and 

 is hence called the tunica adnata. It sepa- 

 rates from the testis near the epididymis. 



6. The tunica albuginea, the thick invest- 

 ment proper of the testis ; near the epididy- 

 mis it is very much thickened, forming the 

 corpus Highmori ; from this radiate bands 

 of connective tissue towards the rest of the 

 albuginea, forming imperfect septa which 

 divide the testis into lobules. 



c. The tubuli seminiferi, contorted and ana- 

 stomosing tubes occupying the lobular spaces; 

 near the corpus Highmori the tubes unite, 

 and the tubes so formed, the vasa recta, 

 have a short, tolerably straight course; in 

 the corpus Highmori they anastomose with 

 one another, forming the rete testis ; from 

 the outer edge of this may be seen some 

 larger tubes, the vasa eflerentia, which 

 originate from the rete and after coiling in 

 the coni vasculosi join to form the canal 

 of the epididymis. 



2. Observe under a high power 



a. The fine connective tissue of the tunica 

 adnata, indications of the flattened epithelium 

 covering it will be seen. 



b. The coarser connective tissue of the tunica 

 albuginea, corpus Highmori and septa, con- 

 taining numerous blood-vessels. 



