Fig. 156. Male Perineum. III. Prostate. COWPER's Gland with 

 Ducts. Terminal Branches of Internal Pudic Artery. 



The Vessels and Nerves liave been cut away in the posterior part of the Peri- 

 neum. The Corpus Spongiosum has been denuded of its muscles and laid open 

 so as to exhibit the course of the Artery to the Bulb and the Ducts of Cowpbrs 

 Glands. The Prostate has been exposed by removal of the fibres of the Levator 

 Ani and Sphincter Ani Muscles which center it. 



This figure is given f(ir the demonstration of the position of CowPER's 

 Glands and their ducts which vary from 1 '/jth to 3V5ths inches in length; whereas 

 their diameter is 0.02 inch and their hmien 0.0 1 inch. 



The Glands themselves, not always symmetrical, are situated about V5 inch 

 from the middle line on either side of the membranous portion of the Urethra between 

 the z layers of the triangular ligament, near is posterior border and between the 

 fibres of the Compressor Urethrae. These glands are lobulated or mulberry- 

 shaped, hard, almost white in colour, about Yi; to -/d inch long. The}' belong to 

 the racemose type of glands and vary according to the individual and age but 

 are frequentty unobserved owing to incomplete dissection. 



The Artery to the Bulb (a branch of the Internal Pudic) consisting of 

 two vessels (cf. Fig. 154), supplies the Bulb, Prostate and the structures which lie 

 between the 2 layers of the triangular ligament, e. g. Compressor Urethrae Muscle, 

 Membranous Portion of Urethra, CowPER's Gland and Corpus Spongiosum as far 

 as the Glans Penis. At this point it anastomoses with the Dorsal Artery of the 

 Penis and through this with the Arteries of the Corpora Cavernosa. 



