THE PENIS 



1389 



CXTERNAL ORIFICE 

 OF URETHRA 



median raphe (sulcus bulbi), from which a thin fibrous septum projects into the 

 substance of the bulb and divides it imperfectly into two lateral lobes or hemi- 

 spheres (hemisphaeria bulbi urethrae). 



The portion of the corpus spongiosum 

 in front of the bulb lies in a groove on 

 the under surface of the conjoined corpora 

 cavernosa. It is cylindrical in form and 

 tapers slightly from behind forward. Its 

 anterior extremity is expanded in the 

 form of an obtuse cone, flattened from 

 above downward. This expansion, termed 



CORONA 



GLANDIS 



CORONA, 

 GLANDIS 



BULB OF 

 URETHRA 



FIG. 1138. The penis, with the pubic bones, seen 

 from before and below. (Toldt.) 



V/AS 

 DEFERENS 



Fio. 1139. The penis, with the urethra, Cowper's 

 glands, the prostate gland, and the seminal vesicles 

 seen from below and behind. (Toldt.) 



the glans penis, is moulded on the rounded ends of the corpora cavernosa, extending 

 farther on their upper than on their lower surfaces. At the summit of the glans 



