THE MALE URETHRA. 217 



mences in front of the triangular ligament at the bulb, 

 and lying between and below the united crura, termi- 

 nates at the glans. 



The arteries of the penis are the dorsal, which lie in 

 the dorsal furrow, supplying the integument, and after- 

 wards pierce its fibrous investment, near the corona ; the 

 arteries to the corpora cavernosa, and the arteri.es to the 

 bulb. The veins are very numerous, and are superficial 

 and deep, the former passing into the dorsal vein, which 

 lies between the two dorsal arteries, and generally termi- 

 nates in the internal saphena; and the deep, after pierc- 

 ing the triangular ligament, terminate in the prostatic 

 plexus. 



The lymphatics, with which the organ is richly fur- 

 nished, accompany the dorsal vessels and pass into the 

 ganglia of the fold of the groin. 



The nerves lie external to the arteries on the dorsum, 

 and are freely distributed to the body and glans. 



The penis is often the seat of an arrest of develop- 

 ment, one form of which, where the anterior wall of the 

 urethra is wanting, is termed epispadias ; and where the 

 superior wall is wanting, and generally associated with 

 extroversion of the bladder, hypospadias. Occasionally 

 the prepuce completely incloses the glans, excepting a 

 minute orifice through which the urine passes (congenital 

 phimosis). 



SUKGICAL ANATOMY OF THE MALE URETHRA. 



Supposing in the first instance the parts removed from 

 the body, for the sake of examining the canal, the urethra 

 may be described as extending from the neck of the 

 bladder to the meatus urinarius, and is from eight to 

 nine inches in length, and for general division consists 



