Arteries of the Trunk. 



433 



A. perinei 

 M. ischiocavernosus 



M. bulbocavernosus t_ 



Trigonum 

 urogenitale " 



M. transversus 

 perinei superficialis 



A. perinei - 



M. sphineter ani , 

 exteinus 

 M. levator ani . 



N. pudendus 



M. glutaeus 

 maximus 



Aa. labiales 

 posteriores 



A. perinei 

 A. profunda clitoridis 



A. dorsalis clitoridis 



A. urethralis 

 ._ A. clitoridis 



- A. bulbi vestibuli 

 [vaginae] 



_ A. pudenda interna 



A. haemorrhoidalis 

 inferior 



474. Arteries of the female perineum. 



(Dissection similar that of Fig. 473; the eras clitoridis has heen drawn aside.) 



ad) A. dorsalis penis (see Figs. 470, 473, 475 and 659) goes near the lig. suspensorium 

 penis to the dorsum penis and in its medial groove, on each side near the un- 

 paired V. dorsalis penis, as far as the glans; it gives branches to the skin, to 

 the corpora cavernosa penis et urethrae and especially to the glans penis. 

 3b) A. cUloridis (present only in the female) is comparable in its course to the a. penis ; 

 it gives off the a. hulbi vestibuli [oar/inaej to the perineal muscles, the vagina and 

 the bulhus vestibuli , the a. urethralis to the latter and to the vestibulum vaginae, 

 and the a. frofunda clitoridis to the crus clitoridis ; the a. dorsalis clitoridis runs 

 upon the clitoris to the glans cUtoridis, praeputium clitoridis and labia minora. 

 A. iliaca externa (external iliac artery) (see Figs. 463, 467, 468, 470, 471, 476, 

 499, 500 and 503) downward, lateralward and forward on tlie medial, anterior surface of the 

 m. psoas major: it runs first forward, then lateralward from the v. iliaca externa, in front of 

 the fascia iliaca and behind the peritonaeum ; on the right side the anterior and medial surftice 

 of its initial portion is crossed by the ureter. It goes through the lacuna vasorum beneath the 

 lig. inguinale (see Fig. 370) and from there on is called the a. femoralis. Branches: 



