Bassett Collection of Stereoscopic Images of Human Anatomy

Dissection of male pelvis from a lateral approach

General view of pelvic contents in situ, pelvic diaphragm reflected

Image #169-4

KEYWORDS: Muscles and tendons.

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Dissection of male pelvis from a lateral approach
General view of pelvic contents in situ, pelvic diaphragm reflected
The opening into the pelvis has been somewhat enlarged by the removal of more of the pubic and ischial bones and a small part of the body of the ilium. The obturator fascia has been cut away and the pelvic diaphragm has been split and reflected. Areolar connective tissue has been stripped from the underlying vessels and nerves.
1 . Periosteum of ilium
2 . Body of ilium (partially removed)
3 . Obturator artery (source of two vesical branches)
4 . Upper pointer: Parietal peritoneum (external aspect) Lower pointer: Ductus deferens
5 . Obturator nerve
6 . Iliopsoas muscle (cut off)
7 . Femoral nerve (cut off)
8 . Femoral artery and vein (cut off)
9 . Urinary bladder (external surface)
10 . Superior vesical artery
11 . Pectineus muscle
12 . Transversalis fascia
13 . Pubic symphysis (left pubic bone cut away)
14 . Suspensory ligament of the penis
15 . Glans penis (dissected)
16 . Upper pointer: Ureter Lower pointer: Pelvic ganglion (note parts of pelvic plexus associated with ureter)
17 . Sciatic nerve
18 . Inferior gluteal artery
19 . Piriform muscle
20 . Coccygeus muscle (reflected)
21 . Filaments of pelvic plexus
22 . Parietal pelvic fascia
23 . Vesical veins
24 . Branch of sacral nerve IV to levator ani muscle
25 . Levator ani muscle (reflected)
26 . Superior fascia of pelvic diaphragm
27 . External anal sphincter muscle
28 . Superior fascia of urogenital diaphragm
29 . Urethra (opened)
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