Which bone is NOT listed as one of the two major bones of the pelvis?

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Multiple Choice

Which bone is NOT listed as one of the two major bones of the pelvis?

Explanation:
The pelvis is built from two hip bones that form the pelvic ring. Each hip bone is made up of three fused parts: the ilium, the ischium, and the pubis. In many anatomy references, the two major bones that form the pelvis are the ilium and the ischium, while the pubis is the anterior portion of the hip bone and not counted as one of the two main bones. The pubis therefore isn’t one of the two major bones of the pelvis. The sacrum also contributes to the pelvis, forming the back wall, but it’s a separate bone rather than one of the main hip-bone components.

The pelvis is built from two hip bones that form the pelvic ring. Each hip bone is made up of three fused parts: the ilium, the ischium, and the pubis. In many anatomy references, the two major bones that form the pelvis are the ilium and the ischium, while the pubis is the anterior portion of the hip bone and not counted as one of the two main bones. The pubis therefore isn’t one of the two major bones of the pelvis. The sacrum also contributes to the pelvis, forming the back wall, but it’s a separate bone rather than one of the main hip-bone components.

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