<prompt> Watershed area between SMA and IMA which commonly result in ischemia isHepatic flexureSplenic flexureRectosigmoid Jn.Ileocolic In.  <response>: Splenic flexure Ref: Harrison 17e p1910; are several weak points in the colonic blood supply, known as watershed areas, which result from incomplete anastomoses of the marginal aeries. These watershed areas are more vulnerable to ischemic injury than other pas of the colon. The two most common points are:- Griffiths point at the splenic flexure and- Sudecks point at the rectosigmoid junction.Splenic flexure is the watershed territory between SMA and IMA.Rectosigmoid junction is the watershed territory between IMA and the internal iliac aery. 