Measurements of the Pelvis Select an os coxa or pelvis for your group to measure. Note its label and take the following measurements. Note its side of the body. Os coxa or Pelvis Label and side of body: OS (OX9 39.92mm Ilium breadth: length of line from the anterior superior iliac spine to the posterior superior iliac spine (line 3 in photograph). Ilium height: length of line from the most superior point on the iliac crest to the border of the acetabulum (line 4 in photograph). a Ilium breadth x 100 Ilium height 7 5 2 75 3 8 Using the measurements that you have taken, calculate the breadth/height ratio. Breadth/height ratio: Measure the breadth (3) and height (4) of the ilium. Calculate the breadth/height radio: (show your work) The breadth/height ratio can be used to describe the shape of the iliac blade. Note also the position of the blade in space. It is flat or curved? Is it parallel or perpendicular to the spine, o something in between