Fig- J^SQ- Male Perineum. VI. Pubic Region. Levator Ani Muscle. 



The Levator Ani Muscle has been exposed, a part of the Urethra below the point 

 at which it traverses the Triangular Ligament has been removed. The vessels 

 are preserved but tJie nerves, except the Dorsal Nerve of the Penis, Jiave been 



cut away. 



This figure shews ahnost the complete surface of the Levator Ani Muscle 

 with its different parts and the incomplete gap anteriorly. Some of the veins 

 which traverse it have been preserved on the left side. Posteriorly the close 

 relation which the Coccygeus bears to this muscle (of which it really should be 

 regarded as a part) is seen. 



Furthermore through the gap in the anterior part of the Levator Ani, the 

 Recto-Urethral Muscle (cf. Fig. 155), the Compressor Urethrae Muscle encircling 

 the Urethra by some of its fibres whereas others pass transversely across in front 

 of it can be seen. The Transverse Pelvic Ligament (or the Pre-urethrae Liga- 

 ment of Waldeyer) runs across in front of a gap (for the transmission of veins). 

 Between this ligament and the Suspensory Ligament of the Penis which is attached 

 to the lower border of the Symphysis, is situated the gap for the passage of the 

 superficial vessels of the Penis. 



The Dorsal Arteries of the Penis are seen anastomosing in this figure, and 

 the Dorsal Vein is seen to have bifurcated into Left and Right branches. The 

 lumen of the Urethra, where it passes through the triangular ligament is almost 

 circular if the mucous folds, which become obliterated during the passage of urine 

 or of an instrument, be neglected. In this Distal portion of the Urethra as it is 

 embedded in the Corpus Spongiosum the Lumen is more oval. Here the separ- 

 ation between the Corpus Spongiosum and Corpora Cavernosa is most distinct. 



