GROSS ANATOMY

Detailed explanation-1: -The two bones meet in the midline at the pubic symphysis. The two inferior rami at the lower border of pubic symphysis subtend the subpubic angle. In females the subpubic angle is more than 90° and in males it is less than 90°.

Detailed explanation-2: -The ischium is the posterior inferior portion of the pelvis. Posteriorly, bony prominences form the ischial tuberosity or each side of the inner pelvis and support the weight of the body in a sitting position.

Detailed explanation-3: -In discussing the pelvis, a distinction can be made between the “pelvic spine” and the “pelvic girdle.” The pelvic girdle, also known as the os coxae, Latin for “bone of the hip, ” consists of the fused bones identified individually as the ilium, ischium, and pubis.

Detailed explanation-4: -Answer and Explanation: The angle formed by the pubic bones below the pubic symphysis is called the pubic arch.