MALE ORGANS OF GENERATION PEN IS. 



tory duct is aboat three quarters of an inch in length, and running for 

 wards, first between the base of the prostate and the isthmus, and then 

 through the tissue of the veru montanum, opens upon the mucous mem 

 brane of the urethra, near its fellow of the opposite side, at the anterior 

 extremity of that process. 



MALE ORGANS OF GENERATION. 



The organs of generation in the male are, the penis and the testes, with 

 their appendages. 



PENIS. 



The Penis is divisible into a body, root, and extremity. The body is 

 surrounded by a thin integument, which is remarkable for the looseness 

 of its areolar connexion with the deeper parts of the organ, and for con- 

 taining no adipose tissue. The root is broad, and firmly adherent to the 

 rami of the ossa pubis and ischia by means of two strong processes, the 

 crura, and is connected to the symphysis pubis by a fibrous membrane, the 

 ligamentum suspensorium. The extremity, or glans penis, resembles an 

 obtuse cone, somewhat compressed from above downwards, and of a 

 deeper red colour than the surrounding skin. At its apex is a small ver- 

 tical slit, the meatus urinarius, which is bounded by two, more or less 

 protuberant, labia ; and, extending backwards from the meatus, is a de- 

 pressed raphe, to which is attached a loose fold of mucous membrane, the 

 fraenum praeputii. The base of the glans is marked by a projecting collar, 

 the corona glandis, upon which are seen a number of small papillary ele- 

 vations, the glandulse Tysoni (odoriferse). Behind the corona is a deep 

 fossa, bounded by a circular fold of integument, the prceputium, which, in 

 the quiescent state of the organ, may be drawn over the glans, but, in its 

 distended state, is obliterated, and serves to facilitate its enlargement. The 

 internal surface of the prepuce is lined by mucous membrane, covered by 

 a thin epithelium ; this membrafte, on reaching the base of the glans, is 

 reflected over the glans penis, and, at the meatus urinarius, is continuous 

 with the mucous lining of the urethra. 



The penis is composed of the corpus cavernosum and corpus spongio- 

 sum, and contains in its interior the longest portion of the urethra. 



The Corpus cavernosum is distinguished into two lateral portions (cor- 

 pora cavernosa) by an imperfect septum and by a superior and inferior 

 froove, and is divided posteriorly into two crura. It is firmly adherent, 

 y means of its crura, to the rami of the ossa pubis and ischia. It forms, 

 anteriorly, a single rounded extremity, which is received into a fossa in 

 I he base of the glans penis ; the superior groove lodges the dorsal vessels 

 of the organ, and the inferior receives the corpus spongiosum. Its fibrous 

 tunic is thick, elastic, and extremely firm, and sends a number of fibrous 

 bands and cords (trabeculae) inwards from its inferior groove, which cross 

 its interior in a radiating direction, and are inserted into the inner walls of 

 the tunic. These trabeculse are most abundant on the middle line, where 



the secretion is poured out. In the description of the vas deferens, with its connexion 

 with the duct of the vesicula seminalis, I have adopted this plan, that I might not too 

 tar depart from established habit. But as it is more correct and consistent with the 

 present state of science to consider the gland as a development of the duct, I have pur- 

 5 nod the Utter principle in the description of most of the other glandular organs of the 



