72 



TOPOGRAPHICAL ANATOMY OF THE 



the ends of the testis. It should be noted that both the bead and the 

 tail are much thicker than the body, and that the head is closely applied, 

 and adherent to, the testis. From the tail the ductus deferens takes 

 origin, to pass upwards into the inguinal canal as one of the constitu- 

 ents of the spermatic cord. The cauda epididymidis is not adherent to 

 the testis, but is joined to the wall of the scrotum by a short, stout liga- 

 ment (ligameutum epididymidis), covered by a reflection of the vaginal 

 tunic. 



The spermatic^ cord (Funiculus spermaticus). — The term spermatic 

 " cord " is somewhat misleading. It is applied to a triangular reflection 

 of the vaginal tunic and certain structures (ductus deferens, bundles of 



Pampiniform plexus. 



c- -J- J -J iT" ^ I'i ' *li\V">Wt- Tunica vaginalis. 



Sinus epididymidis. J lt\ ~t \f, '^\ 



Caput epididymidis. 

 Corpus epididymidis. . '^' ' IS'^. _-«m\\^^ \ . 



Ligamentum epididymidis. 



Cauda epididymidis. Testis. 



Fig. 30. — Lateral aspect of the right testis and epididymis. 



unstriped muscular fibres — m. cremaster internus — blood-vessels, nerves 

 and lymphatics) contained therein. The apex of the triangle disappears 

 into the inguinal canal : the base is connected with the testis and the 

 epididymis. 



The cranial free edge of the cord is formed by a prominent mass 

 composed of a richly coiled vein (pampiniform ^ plexus), and, buried 

 within the venous mass, the internal spermatic artery by which the 

 testis is supplied with blood. 



The deferent^ duct is enclosed in a special fold (plica ductus 

 deferentis), springing from the medial face of that part of the serous 

 vaginal tunic which encloses the other constituents of the spermatic 

 cord, 



1 Spermaticus [L.] ; aTrep/xaTiKds (spermaticos) [Gr.], pertaining to the semen. 



2 Pampinus [L.], a tendril or young shoot of the vine ; forma [L.], form. 



3 Deferens [L.], carrying away. 



