BRANCHES OF THE PUDIC ARTERY. 



427 



superficial fascia, between the erector penis and accelerator urinae muscles, supplying 

 both. In this course the artery gradually becomes superficial, and is finally distri- 

 buted to the skin of the scrotum and the dartos. It not unfrequently gives off the 

 following branch. 



Fig. 293. DISSECTION Fig. 293. 



OF THE PERINJEUM IN A 

 YOUNG MALE SUBJECT, 

 SHOWING THE BLOOD- 

 VESSELS, &C. 4 



This drawing is made 

 from a preparation upon 

 a modification of the plan 

 of R. Quain's 61st and 

 62nd Plates. The right 

 side shows a superficial, 

 the left a deeper view. 



a, the anus, with a 

 part of the integument 

 surrounding it ; b, left 

 half of the bulb of the 

 urethra exposed by the 

 removal of a part of the 

 bulbo-cavernosus muscle ; 

 c, coccyx ; d, right tube- 

 ro&ity of the ischium ; e, 

 e, the anterior part of the 

 superficial perineal fascia 

 passing forward upon the 

 scrotum, and removed 

 from the surface of the 

 muscles and its reflections 

 into the deep fascia ; /", 

 right ischio -rectal fossa, 

 from which the fat and 

 fascia have not been re- 

 moved ; g, glutens ruaxi- 

 mus muscle ; 1, placed 

 on the right transversus 

 perinsei muscle, points to 

 the superficial perineal 

 artery as it emerges in 

 front (in this case) of the 

 muscle; 1', placed on the 

 left side on the surface of 

 the triangular ligament 

 near its reflection into 

 the superficial fascia, points to the superficial perineal artery cut short ; 2, on the right 

 ischio -cavernosus muscle, points to the superficial perinea! arteries and nerves passing 

 forward ; 2', the same on the left side, the vessels and nerves having been divided there ; 

 3, on the triangular ligament of the right side, points to the transverse perineal branch 

 of the superficial perineal artery ; 4, on the left tuberosity of the ischium, points to the 

 pudic artery deep in the ischio-rectal fossa ; 5, 5', the inferior haamorrhoidal branches 

 of the pudic arteries and nerves ; 6, on the left side, placed in a recess from which the 

 triangular ligament or anterior layer of the subpubic fascia has been removed to show the 

 continuation of the pudic artery, its branch to the bulb, and one of Cowper's glands. 



(c) The transverse perineal artery, a very small vessel, arises either from the 

 pudic artery, or from the superficial perineal, near the transversus perinasi muscle. 

 It lies across the perineeum, and terminates in small branches which are distributed 

 to the transverse muscle, and to the parts between the anus and the bulb of the 

 urethra. 



(d) The artery of the bulb, is, surgically considered, an important vessel. It is very 



F F 2 



