320 EXTERNAL GENERATIVE ORGANS, BY E. KLEIN. 



description of the mode of vascular distribution of the external 

 organs of generation in the female, established the following 

 points in regard to the already long-acknowledged analogy 

 of the corpora cavernosa penis and clitoridis : 



1. The small arteries pour their blood towards the root of the 

 clitoris directly into large veins. 



2. The finer venous plexus near the surface receives arterial 

 blood through minute arterial branches. 



3. The capillary plexus just beneath the surface of the 

 anterior extremity of the organ into which the arteries for the 

 most part break up, forms, by means of the venous plexus 

 with which it is continuous, the transition into the coarse 

 erectile plexus. 



The erectile plexus of the bulbus vestibuli has a structure 

 similar to that of the clitoris. The external surface of the bulb 

 is formed by a coarse, the internal by a fine, venous plexus. 

 The latter is traversed by the veins uniting with that venous 

 plexus in the submucous tissue of the urethra and of the 

 vestibule, which is spread over the anterior wall of the vagina 

 as far as to the urinary bladder (Gussenbauer). 



The efferent vense profundse present the same relations to 

 the cortical layer of the erectile body which are so important 

 for the production of erection, as in the penis. Of equal 

 importance for erection are the relations of the efferent veins 

 to the musculi bulbo- and ischio-cavernosi which by their con- 

 traction occasion compression of the efferent veins of the 

 corpora cavernosa clitoridis., and of the bulbus vestibuli. 



The pars intermedia is a convoluted mass of veins that 

 emerges from the posterior surface of the clitoris, and con- 

 stitutes the connection between the corpus cavernosum 

 clitoridis, the bulb, nymphse, frenulum and glans clitoridis 

 (Gussenbauer) . 



The mucous membrane of the vestibule presents numerous 

 folds ; many glands open upon it, some of which are irregu- 

 larly distributed over the surface of the vestibulum, whilst 

 others are more closely compressed about the orifice of the 

 urethra and the introitus vaginae. They appear in the form of 

 branched tubes, with several projections at their deeper part, 

 that are lined throughout by a single layer of columnar 



