86 



Topography. 



Fasc. per in. 

 propr. 



Tuber, oss. 

 ischii 



428. Topography of the Female Perinaeum. 



In the female the J/. ischio-cavernosus s. erector clitoridis lies upon 

 the clitoris, on the back of which the muscles of the two sides unite in 

 a common tendon. The H/. hulbo-cavernosus is wanting ; it is replaced by 

 the M. constrictor cunni s. sphincter vaginae. This muscle is to be looked at 

 as a continuation of the J/. sphincter ani cxternns, whose right half passes 

 to the left wall of the orifice of the vagina, whose left half to the 

 right wall of the orifice, and it is inserted partly into the back of the 

 clitoris, partly runs to the Fascia svperficicdis. Sphincter ani externus and 

 Sphincter vaginae therefore form one common muscle, which has the figure 

 of an 8 ; both are voluntary muscles. The lower bundles of the J/. trans- 

 versus perinei run to the median line, the upper bundles to the vagina. 



If the coccygeal origin of the 3L sphincter ani externus is removed, 

 a fibrous layer is reached, which unites the J/J/. levatores ani; between 

 this layer and the apex of the coccyx the coccygeal gland of 

 L u s c h k a, Glandula cocci/yea., lies; it is about the size of a hemp seed, 

 sometimes single, sometimes formed of several lobes, and consists in great 

 measure of dilated arterial vessels (see Fig. 426). 



