1954 



HUMAN ANATOMY. 



with the seminal vesicle, a saccular organ representing an outgrowth from the main 

 canal. 



The Vas Deferens. This tube (ductus dcfcrcns) extends from the epiclidymis 

 to the ejaculatory duct and includes almost the entire length of the spermatic duct, 

 with .1 diameter of from 2-3 mm. Beginning at tne globus minor as the direct con- 

 tinuation of the convoluted canal of the epididymis, the vas deferens is at first also very 

 tortuous, and by its windings forms a tapering mass (pars tcsticularis) about 2.5 cm. 

 in length. From the latter the seminal duct is prolonged upward along the inner 

 side of the epididymis and behind the testis, becoming progressively less wavy and 



FIG. 1662. 



External iliac 

 artery 



External iliai 

 vein 



Deep epigastric 



artery 

 Spermatic vessels 



Internal abdominal 

 ring 



Obliterated 

 hypogastric artery 



Urachus 



Suspensory 

 ligament of j-nis 



Internal urethra! orifice- 

 Fatty tissue 

 containing \t-ms 



Pectinate septum 



Spongy urethra 



N i . ; - . : i : 1 . sa 



\Hu 



Ureter, entering 

 bladder 



minal vesicle 

 Rectum 



Ejaculatory duct 



Prostatic urethra 

 and utricle 



Prostate 



Membranous urethra 

 Bulb of cavernous body 



Ibous urethra 



Scrotum 

 Huectlon of sagittally cut pelvis, showing relations of organs after fixation by formalin injection. 



of larger ami more uniform size (3 mm. ) as it enters the spermatic cord. Although 

 apparent entire length of the canal is about 30 cm. (12 in.), its actual extent is 

 00*45 Cpl. ( IS in.) ,,n account of the tortuosity of its first part 



\\.thm the spermatic COlt* (pars funicularis), accompanied by the deferential 



the posterior plexus ,,f veins (Fig. 1670), the vas occupies a position 



bind the Otto constituents OJ the cord, and may be recognized by {he hard, cord- 



hke feel nn,,ar.,d by ,,s ,h,rk fibro-muscular wall. The duct ascends almosi verti- 



the publC spine, and on gaining the abdominal wall passes through the external 



WBial ring, traverses the i^ninal canal, and completes its passage of the body- 



