Which bone forms the upper portion of the pelvis?

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Multiple Choice

Which bone forms the upper portion of the pelvis?

Explanation:
The upper portion of the pelvis is formed by the ilium. The ilium is the broad, flaring bone that makes up the superior part of the pelvic girdle and includes the iliac crest you can feel along your waist. It forms the upper rim of the acetabulum, where the femur connects to the pelvis. The other parts—ischium forms the lower posterior portion, pubis forms the anterior portion that joins with the opposite pubis at the pubic symphysis, and the sacrum is a triangular bone at the base of the spine that contributes to the posterior pelvic wall but isn’t the upper portion of the hip bone itself.

The upper portion of the pelvis is formed by the ilium. The ilium is the broad, flaring bone that makes up the superior part of the pelvic girdle and includes the iliac crest you can feel along your waist. It forms the upper rim of the acetabulum, where the femur connects to the pelvis. The other parts—ischium forms the lower posterior portion, pubis forms the anterior portion that joins with the opposite pubis at the pubic symphysis, and the sacrum is a triangular bone at the base of the spine that contributes to the posterior pelvic wall but isn’t the upper portion of the hip bone itself.

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