<prompt> Nerve passing from greater sciatic foramen to lesser sciatic foramenPudendal nerveSuperior rectal nerveInferior rectal nerveSciatic nerve  <response>: The greater sciatic foramen is an opening foramen at the back of the human pelvis. It is formed by the sacrotuberous and sacrospinous ligaments. The piriformis muscle passes through the foramen and occupies most of its volume. ref - BDC 6e vol2 pg363 