70 Male Organs of Generation. 



V. dors. j>en 



Corp. cavern, 

 penis'" 



Tunica 

 alkuginea 



409. Transverse Section of the Penis in the 

 Distended State. 



The muscular tissue constitutes the proper stroma of the prostate; 

 it is arranged in several layers, between which, strong muscular bands, 

 decussating freely, form meshes in which the glandular substance of the 

 organ is imbedded 5 the excretory ducts of the glands open on both sides 

 of the Caput (jail/nag mis. 



Cowper's glands (see Fig. 410) are compound racemose glands, 

 about the size of peas; they lie behind the bulb of the urethra at the 

 lower wall of the membranous portion, surrounded by the fibres of the 

 M. transversiis perinei profundus. Their excretory ducts pass obliquely for- 

 wards and open at the bulbous portion of the urethra (see Fig. 403). 



The male organ, Penis, is composed of erectile tissue, enclosed 

 in three cylindrical fibrous c o in p a r t m e n t s ; of these , two, 

 the Corpora cavernosa penis, form the principal part of the organ, while 

 the third, Corpus caver nosum urethrae or Corpus sponyiosum encloses the urethra. 



The Corpora cavernosa penis are cylindrical, erectile bodies, intimately 

 connected along the median line for their anterior three-fourths, their 

 posterior fourth being separated to form the two Crura penis, by which 

 the penis is connected to the raini of the pubes 5 each crus presents a 

 slight enlargement, the bulb of the Corpus eavcrnoxum. The upper surface 

 of /the united cavernous bodies is marked by a slight groove containing 

 the single Vena dorsalis and the two Arteriae dorsalcs ^m's; the under 

 surface presents a longitudinal groove, in which is lodged the Corpus 

 sportf/losum. Each Corpus cavernosum is enclosed in the fibrous Tunica albu- 

 (jinea, which sends off numerous fibrous bands, Traljeculae ; these cross the 

 cavity in all directions, subdividing it into a multitude of interstices. 

 The fibrous septum between the Corpora cavernosa is incomplete in 

 front, exhibiting numerous clefts. The erectile tissue consists of a venous 

 plexus lodged in the interspaces between the trabeculae. The arteries of 

 the Corpora cavernosa arc the cavernous branches of the internal pudic (Art. 

 profnndae penis), and branches from the dorsal artery of the penis. Within 

 the cavernous tissue, the numerous arterial branches are supported by 

 the trabeculae, and terminate in branches of capillary minuteness which 

 open into the intertrabecular spaces. 



