416 



ABDOMEN 



masses, called the coni vasculosi. Ultimately these ducts open 

 into a single convoluted canal, termed the ductus epididymidis. 

 The head of the epididymis is thus composed of the coni 

 vasculosi and the coiled ductus epididymidis. The body and 

 tail of the epididymis are formed of the continuation of 

 the same canal coiled and convoluted upon itself to a remark- 

 able degree. 



The intricacy of its flexuosities will be better understood by 

 simply stating that if it were completely opened out it would 

 be found to measure twenty feet or more. At the lower end 

 of the cauda epididymidis the ductus epididymidis becomes 

 continuous with the ductus deferens. 



Dissection. The dissector should endeavour to unravel a part of the 

 ductus epididymidis. The coils are held together by areolar tissue and 

 the dissection is very tedious. 



Penis. The penis has already, to a certain extent, been 

 studied in the dissection of the perineum (p. 351). It has 



been seen to be 

 composed of the 

 corpus cavernosum 

 Corpus penis and the corpus 



Urethra surrounded 1>y the 

 corpus cavernosum urethra: 



FIG. 157. Median section through the terminal 

 part of the Penis. 



_ca verno.su m cavernosum urethrce. 



penis . , . 



_ Septum Posteriorly, the 

 penis corpus cavernosum 



penis divides into 

 the two crura penis 

 which are attached 

 to the sides of the 

 pubic arch ; an- 

 teriorly, the corpus 

 cavernosum penis ends in a blunt rounded extremity, which 

 is covered by the glans penis. The corpus cavernosum 

 urethrae, when traced backwards into the perineum, expands 

 into the bulb of the urethra which is attached, in the medial 

 plane, to the inferior fascia of the urogenital diaphragm ; 

 traced forwards to the extremity of the penis, it is again 

 found to expand into the glans penis, which fits like a cap 

 upon the rounded end of the corpus cavernosum penis. 

 The glans penis is somewhat conical in shape, and the 

 projecting margin of its base is termed the corona glandis. 

 The urethra opens at the extremity of the glans by a vertical 

 fissure, called the meatus urinarius. 



