Bassett Collection of Stereoscopic Images of Human Anatomy

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KEYWORDS: Muscles and tendons.

Stanford holds the copyright to the David L. Bassett anatomical images and has assigned Creative Commons license Attribution-Share Alike 4.0 International to all of the images.

For additional information regarding use and permissions, please contact Dr. Drew Bourn at dbourn@stanford.edu.

Dissection of male pelvis from a lateral approach

Pelvic diaphragm, close-up view of left side

The specimen shown in the previous view is seen here in a close-up photograph of the lower area of the dissection.

1 .	Right pointer: Levator ani muscle Left pointer: Tendinous arch of levator ani muscle
2 .	Obturator fascia
3 .	Acetabulum
4 .	Obturator nerve, artery, and vein
5 .	Obturator internus muscle (fibers of origin of muscle lodged in cleft between obturator fascia (2) and periosteum (6)
6 .	Periosteum
7 .	Body of pubic bone
8 .	Sacrospinous ligament
9 .	Pudendal nerve (also see no. 20)
10 .	Ischial spine
11 .	Coccygeus muscle
12 .	Coccyx
13 .	Sacral nerve IV (perineal branch)
14 .	Anococcygeal ligament
15 .	Upper pointer: Inferior rectal nerve Lower pointer: Inferior rectal artery
16 .	Internal pudendal artery
17 .	Perineal artery
18 .	External anal sphincter muscle
19 .	Central tendon of perineum
20 .	Right pointer: Pudendal nerve (also see no. 9) Left pointer: Urogenital diaphragm (partially dissected)
21 .	Bulb of penis (dissected)
22 .	Spongy part of urethra (opened)
23 .	Inferior pubic ramus
24 .	Dorsal artery of penis
25 .	Dorsal nerve of the penis