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Male external genitalia and perineum

Tela subcutanea; deep membranous layer of superficial fascia, anteroinferior view

Image #165-2

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Male external genitalia and perineum

Tela subcutanea; deep membranous layer of superficial fascia, anteroinferior view

The skin has been removed from the abdominal wall, the external genitalia and the perineum. The tela subcutanea has been dissected to expose the deeply placed membranous layer of superficial fascia which over the lower part of the abdominal wall is known as Scarpa's fascia (1) and over the penis, scrotum and perineum has been called Colles' fascia (19). In the scrotum this layer is blended into the tunica dartos.

1 .	Membranous layer of superficial fascia (Scarpa's fascia)
2 .	Position of left testis in elevated scrotum (testis atrophic)
3 .	Urethral surface of penis (covered by superficial penile fascia)
4 .	Raphe penis (skin removed)
5 .	Glans penis
6 .	Neck of penis
7 .	Position of right testis in elevated scrotum
8 .	Skin of right thigh
9 .	Subcutaneous fat in perineum
10 .	Skin of perineum
11 .	Position of anus (not visible)
12 .	Incomplete fibrous lamina in tela subcutanea
13 .	Ilioinguinal nerve
14 .	Line of fusion of Scarpa's fascia to fascia of thigh below and parallel to inguinal ligament
15 .	External pudendal arteries
16 .	External pudendal vein
17 .	Fascia lata
18 .	Great saphenous vein
19 .	Membranous layer of superficial fascia overlying root of penis (Colles' fascia)
20 .	Gracilis muscle (cut across in transecting thigh)