Sacrospinous ligament
http://en.wikipedia.org/wiki/Sacrospinous_ligament
Lesser sciatic foramen
http://en.wikipedia.org/wiki/Lesser_sciatic_foramen
Pudendal canal
http://en.wikipedia.org/wiki/Pudendal_canal
File:Pudendal nerve.svg
http://en.wikipedia.org/wiki/File:Pudendal_nerve.svg
IN THIS CASE THE FINGER MARKS THE SPOT – AS IN ‘X’ MARKS THE SPOT

Sacrotuberous ligament
http://en.wikipedia.org/wiki/Sacrotuberous_ligament
Bones and ligaments of the MALE Pelvis
Pelvis and Ligaments Front View from Above, Male
http://www.edoctoronline.com/medical-atlas.asp?c=4&id=22045
Anal triangle
http://en.wikipedia.org/wiki/Anal_triangle
File:Gray406.png – Tuber ishiad

Tuber ishiadicum and Fascias(hover your mouse over the little squares)
http://salerno.uni-muenster.de/data/bl/sobotta/pics_big/1107.html
Which leads us to the connection to the following –
Peritoneum vs it’s proximity to other nearby anatomical structures

Peritoneum
http://en.wikipedia.org/wiki/Peritoneum
“The peritoneum ( /ˌpɛrɨtənˈiəm/) is the serous membrane that forms the lining of the abdominal cavity or the coelom—it covers most of the intra-abdominal (or coelomic) organs—in amniotes and some invertebrates (annelids, for instance). It is composed of a layer of mesothelium supported by a thin layer of connective tissue. The peritoneum both supports the abdominal organs and serves as a conduit for their blood and lymph vessels and nerves.”…..
Serous membrane
http://en.wikipedia.org/wiki/Serous_cavity
“In anatomy, serous membrane (or serosa) is a smooth membrane consisting of a thin layer of cells, which secrete serous fluid, and a thin epithelial layer. Serous membranes line and enclose several body cavities, known as serous cavities, where they secrete a lubricating fluid which reduces friction from muscle movement. Serosa is not to be confused with adventitia, a connective tissue layer which binds together structures rather than reducing friction between them. The serous membrane covering the heart and lining the mediastinum is referred to as the pericardium, the serous membrane lining the thoracic cavity and surrounding the lungs is referred to as the pleura, and that lining the abdominopelvic cavity and the viscera is referred to as the peritoneum. Serous membrane”….
Trilaminar blastocyst
http://en.wikipedia.org/wiki/Trilaminar_embryo
Intra-embryonic coelom
http://en.wikipedia.org/wiki/Intraembryonic_coelom
…”This space will give rise to the thoracic and abdominal cavities.”




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